Move SharedMemoryLimits out of WebGraphicsContext3DCommandBufferImpl.

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 99d15c8b30dc05ae1f22e0fb2b5b168fb05cca48..ecb1ec62e7ed6bb2efd86619768616f50a079b62 100644
--- a/cc/test/test_context_provider.h
+++ b/cc/test/test_context_provider.h
@@ -38,7 +38,7 @@ class TestContextProvider : public ContextProvider {
 
   bool BindToCurrentThread() override;
   void DetachFromThread() override;
-  Capabilities ContextCapabilities() override;
+  gpu::Capabilities ContextCapabilities() override;
   gpu::gles2::GLES2Interface* ContextGL() override;
   gpu::ContextSupport* ContextSupport() override;
   class GrContext* GrContext() override;
@@ -58,8 +58,6 @@ class TestContextProvider : public ContextProvider {
 
   TestContextSupport* support() { return &support_; }
 
-  void SetMaxTransferBufferUsageBytes(size_t max_transfer_buffer_usage_bytes);
-
  protected:
   explicit TestContextProvider(
       std::unique_ptr<TestWebGraphicsContext3D> context);