Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Have a known hypersensitivity or allergy to biopharmaceutical agents produced in Chinese hamster ovary cells or any component of the atezolizumab and/or bevacizumab formulations Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies History of hypersensitivity to Chinese hamster ovary (CHO) cells or other human or humanized recombinant antibodies. No known hypersensitivity to Chinese hamster ovary (CHO) cell products or any component of the atezolizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies, fluoropyrimidines, folic acid derivatives or oxaliplatin Patients must not be known to be allergic to Chinese hamster egg or ovaries The patient must NOT have a known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients with known hypersensitivity to Chinese hamster ovary products or other recombinant human, chimeric, or humanized antibodies. Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells. Known hypersensitivity to biopharmaceutical agents produced in Chinese hamster ovary cells or any component of the atezolizumab formulation, or any component of the cobimetinib formulation Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Known hypersensitivity to biopharmaceutical agents produced in Chinese hamster ovary cells Known hypersensitivity to biopharmaceutical agents produced in Chinese hamster ovary cells or any component of the atezolizumab, cobimetinib, or vemurafenib formulations Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any components of cobimetinib, atezolizumab, or bevacizumab formulations Known hypersensitivity to Chinese hamster ovary (CHO) cell products or any component of the MPDL3280A formulation Known hypersensitivity to any of the components of cergutuzumab amunaleukin and atezolizumab; hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity allergy or contraindication to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the PD-1/PD-L1 inhibitor formulation; GENERAL: Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies. Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or to any component of the atezolizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or recombinant human antibodies History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins or Chinese hamster ovary cell products. Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab or bevacizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Documented allergy or hypersensitivity to monoclonal antibodies (bevacizumab), to Chinese hamster ovarian cells of the or to any other humanized or recombinant antibodies Known hypersensitivity or allergy to Chinese hamster ovary cell products or any component of the MDPL3280A formulation Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or to any component of the atezolizumab formulation Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or other recombinant antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies. Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab or guadecitabine formulations Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or any of the study drugs Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human or humanized antibodies This criterion applies only to the patients enrolled before August 29, 2011 and those enrolled after this date electing to receive bevacizumab; patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human or humanized antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation. Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Patients must not have known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation or known hypersensitivity to any component of cobimetinib or vemurafenib Known hypersensitivity to pharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Known hypersensitivity to biopharmaceutical agents produced in Chinese hamster ovary cells Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab, obinutuzumab, rituximab, or bendamustine formulation, including mannitol Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or any component of the atezolizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies. History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins; known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human or humanized antibodies Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cell or any component of the atezolizumab formulation Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients with known hypersensitivity of Chinese hamster ovary cell products, other recombinant human antibodies, or compounds of similar chemical or biologic composition to bevacizumab Known hypersensitivity to Chinese hamster ovary cell products or to recombinant human or murine antibodies, or any of the treatments in this protocol Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human or humanized antibodies Known hypersensitivity to bevacizumab, Chinese hamster ovary cell products, or other recombinant human or humanized antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to any component of recombinant protein production by Chinese Hamster Ovary (CHO) cells Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity to any component of recombinant protein production by Chinese Hamster Ovary (CHO) cells Prior hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies (Phase I and II) Phase 1b and crossover only: History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins; Known hypersensitivity to Chinese Hamster Ovary (CHO)-cell products; Allergy or hypersensitivity to components of the atezolizumab formulation Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies, and patients with a history of allergic reactions attributed to compounds of similar chemical or biologic composition to other agents used in the study Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human or humanized antibodies including hypersensitivity to any component of bevacizumab Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation, emactuzumab formulation, or obinutuzumab formulation Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or other recombinant human antibodies Have at least one ovary Patient must not have a known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation