Move gpu memory calculations to Compositor.

cc/test/test_context_provider.h

Index: cc/test/test_context_provider.h
diff --git a/cc/test/test_context_provider.h b/cc/test/test_context_provider.h
index 82b3e612d681344d71d0dbf603f51dcfc8f437a7..84febc3637072d662036e641febc1e42c44779cc 100644
--- a/cc/test/test_context_provider.h
+++ b/cc/test/test_context_provider.h
@@ -41,8 +41,6 @@ class TestContextProvider : public ContextProvider {
   void DeleteCachedResources() override;
   bool DestroyedOnMainThread() override;
   void SetLostContextCallback(const LostContextCallback& cb) override;
-  void SetMemoryPolicyChangedCallback(
-      const MemoryPolicyChangedCallback& cb) override;
 
   TestWebGraphicsContext3D* TestContext3d();
 
@@ -54,8 +52,6 @@ class TestContextProvider : public ContextProvider {
 
   TestContextSupport* support() { return &support_; }
 
-  void SetMemoryAllocation(const ManagedMemoryPolicy& policy);
-
   void SetMaxTransferBufferUsageBytes(size_t max_transfer_buffer_usage_bytes);
 
  protected:
@@ -80,7 +76,6 @@ class TestContextProvider : public ContextProvider {
   base::Lock context_lock_;
 
   LostContextCallback lost_context_callback_;
-  MemoryPolicyChangedCallback memory_policy_changed_callback_;
   skia::RefPtr<class GrContext> gr_context_;
 
   base::WeakPtrFactory<TestContextProvider> weak_ptr_factory_;