gpu: Refactor GpuMemoryBuffer framework for multi-process support.

cc/test/fake_tile_manager.cc

Index: cc/test/fake_tile_manager.cc
diff --git a/cc/test/fake_tile_manager.cc b/cc/test/fake_tile_manager.cc
index 9e9e48a7757d94c1b1cbd8f3dc8644802af0f9db..c4f608bbec4a2b37d47379263c20b1027fead0f0 100644
--- a/cc/test/fake_tile_manager.cc
+++ b/cc/test/fake_tile_manager.cc
@@ -32,6 +32,7 @@ class FakeRasterWorkerPool : public RasterWorkerPool {
       completed_tasks_.pop_front();
     }
   }
+  virtual GLenum GetResourceFormat() const OVERRIDE { return GL_RGBA; }
   virtual void OnRasterTasksFinished() OVERRIDE {}
   virtual void OnRasterTasksRequiredForActivationFinished() OVERRIDE {}
 
@@ -47,8 +48,7 @@ FakeTileManager::FakeTileManager(TileManagerClient* client)
                   NULL,
                   make_scoped_ptr<RasterWorkerPool>(new FakeRasterWorkerPool),
                   1,
-                  NULL,
-                  GL_RGBA) {}
+                  NULL) {}
 
 FakeTileManager::FakeTileManager(TileManagerClient* client,
                                  ResourceProvider* resource_provider)
@@ -56,8 +56,7 @@ FakeTileManager::FakeTileManager(TileManagerClient* client,
                   resource_provider,
                   make_scoped_ptr<RasterWorkerPool>(new FakeRasterWorkerPool),
                   1,
-                  NULL,
-                  resource_provider->best_texture_format()) {}
+                  NULL) {}
 
 FakeTileManager::~FakeTileManager() {}