Fix blurry content after disabling dev tools emulation

cc/trees/layer_tree_host_in_process.h

 // Copyright 2011 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_TREES_LAYER_TREE_HOST_IN_PROCESS_H_
 #define CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 127 matching lines @@
   SwapPromiseManager* GetSwapPromiseManager() override;
   void SetHasGpuRasterizationTrigger(bool has_trigger) override;
   void SetVisible(bool visible) override;
   bool IsVisible() const override;
   void SetCompositorFrameSink(
       std::unique_ptr<CompositorFrameSink> compositor_frame_sink) override;
   std::unique_ptr<CompositorFrameSink> ReleaseCompositorFrameSink() override;
   void SetNeedsAnimate() override;
   void SetNeedsUpdateLayers() override;
   void SetNeedsCommit() override;
+  void SetNeedsRecalculateRasterScales() override;
   bool BeginMainFrameRequested() const override;
   bool CommitRequested() const override;
   void SetDeferCommits(bool defer_commits) override;
   void LayoutAndUpdateLayers() override;
   void Composite(base::TimeTicks frame_begin_time) override;
   void SetNeedsRedraw() override;
   void SetNeedsRedrawRect(const gfx::Rect& damage_rect) override;
   void SetNextCommitForcesRedraw() override;
   void NotifyInputThrottledUntilCommit() override;
   void UpdateTopControlsState(TopControlsState constraints,
@@ skipping 186 matching lines @@
 
   bool has_gpu_rasterization_trigger_;
   bool content_is_suitable_for_gpu_rasterization_;
   bool gpu_rasterization_histogram_recorded_;
 
   // If set, then page scale animation has completed, but the client hasn't been
   // notified about it yet.
   bool did_complete_scale_animation_;
 
   int id_;
-  bool next_commit_forces_redraw_;
+  bool next_commit_forces_redraw_ = false;
+  bool next_commit_forces_recalculate_raster_scales_ = false;
 
   SharedBitmapManager* shared_bitmap_manager_;
   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   TaskGraphRunner* task_graph_runner_;
 
   ImageSerializationProcessor* image_serialization_processor_;
   std::unique_ptr<EnginePictureCache> engine_picture_cache_;
   std::unique_ptr<ClientPictureCache> client_picture_cache_;
 
   SurfaceSequenceGenerator surface_sequence_generator_;
   uint32_t num_consecutive_frames_suitable_for_gpu_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostInProcess);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_