cc: Remove the opaque rect return-parameter from ContentLayerClient.

cc/layers/picture_layer_unittest.cc

 // Copyright 2013 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/layers/picture_layer.h"
 
 #include "cc/layers/content_layer_client.h"
 #include "cc/layers/picture_layer_impl.h"
 #include "cc/resources/resource_update_queue.h"
 #include "cc/test/fake_layer_tree_host.h"
 #include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/fake_proxy.h"
 #include "cc/test/impl_side_painting_settings.h"
 #include "cc/trees/occlusion_tracker.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
 
 class MockContentLayerClient : public ContentLayerClient {
  public:
   virtual void PaintContents(
       SkCanvas* canvas,
       const gfx::Rect& clip,
-      gfx::RectF* opaque,
       ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE {}
   virtual void DidChangeLayerCanUseLCDText() OVERRIDE {}
   virtual bool FillsBoundsCompletely() const OVERRIDE {
     return false;
   };
 };
 
 TEST(PictureLayerTest, NoTilesIfEmptyBounds) {
   MockContentLayerClient client;
   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
@@ skipping 57 matching lines @@
   EXPECT_EQ(Picture::RECORD_NORMALLY, layer->RecordingMode());
 
   settings.recording_mode = LayerTreeSettings::RecordWithSkRecord;
   host = FakeLayerTreeHost::Create(settings);
   host->SetRootLayer(layer);
   EXPECT_EQ(Picture::RECORD_WITH_SKRECORD, layer->RecordingMode());
 }
 
 }  // namespace
 }  // namespace cc