cc: Update Main RendererCapabilities on DeferredInitialize

cc/output/renderer.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/renderer.h"
 
 namespace cc {
 
 bool Renderer::HasAllocatedResourcesForTesting(RenderPass::Id id) const {
   return false;
@@ skipping 16 matching lines @@
       using_discard_framebuffer(false) {}
 
 RendererCapabilitiesImpl::~RendererCapabilitiesImpl() {}
 
 RendererCapabilities RendererCapabilitiesImpl::MainThreadCapabilities() const {
   return RendererCapabilities(best_texture_format,
                               allow_partial_texture_updates,
                               using_offscreen_context3d,
                               max_texture_size,
                               using_shared_memory_resources);
+
+}
+
+bool RendererCapabilitiesImpl::Equals(
+    const RendererCapabilities& main_caps) const {
+  return best_texture_format == main_caps.best_texture_format &&
+         allow_partial_texture_updates ==
+             main_caps.allow_partial_texture_updates &&
+         using_offscreen_context3d == main_caps.using_offscreen_context3d &&
+         max_texture_size == main_caps.max_texture_size &&
+         using_shared_memory_resources ==
+             main_caps.using_shared_memory_resources;
 }
 
 }  // namespace cc