cc: Reset raster scale if we didn't sync high res tiling.

cc/test/fake_picture_layer_impl.h

 // 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.
 
 #ifndef CC_TEST_FAKE_PICTURE_LAYER_IMPL_H_
 #define CC_TEST_FAKE_PICTURE_LAYER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/picture_layer_impl.h"
 
@@ skipping 30 matching lines @@
       const gfx::Size& content_bounds) const OVERRIDE;
 
   using PictureLayerImpl::AddTiling;
   using PictureLayerImpl::CleanUpTilingsOnActiveLayer;
   using PictureLayerImpl::CanHaveTilings;
   using PictureLayerImpl::MarkVisibleResourcesAsRequired;
   using PictureLayerImpl::DoPostCommitInitializationIfNeeded;
   using PictureLayerImpl::MinimumContentsScale;
   using PictureLayerImpl::SanityCheckTilingState;
 
+  void SetNeedsPostCommitInitialization() {
+    needs_post_commit_initialization_ = true;
+  }
+
   bool needs_post_commit_initialization() const {
     return needs_post_commit_initialization_;
   }
 
   bool is_using_lcd_text() const { return is_using_lcd_text_; }
   void force_set_lcd_text(bool enabled) { is_using_lcd_text_ = enabled; }
 
   PictureLayerTiling* HighResTiling() const;
   PictureLayerTiling* LowResTiling() const;
   size_t num_tilings() const { return tilings_->num_tilings(); }
@@ skipping 38 matching lines @@
 
  private:
   gfx::Size fixed_tile_size_;
 
   size_t append_quads_count_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_PICTURE_LAYER_IMPL_H_