android: Use ScreenInfo to calculate tile size

content/renderer/gpu/render_widget_compositor.h

 // Copyright (c) 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 CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
 #define CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
@@ skipping 32 matching lines @@
 class ColorSpace;
 }
 
 namespace ui {
 class LatencyInfo;
 }
 
 namespace content {
 
 class RenderWidgetCompositorDelegate;
+struct ScreenInfo;
 
 class CONTENT_EXPORT RenderWidgetCompositor
     : NON_EXPORTED_BASE(public blink::WebLayerTreeView),
       NON_EXPORTED_BASE(public cc::LayerTreeHostClient),
       NON_EXPORTED_BASE(public cc::LayerTreeHostSingleThreadClient),
       public RemoteProtoChannel {
  public:
   // Attempt to construct and initialize a compositor instance for the widget
   // with the given settings. Returns NULL if initialization fails.
   static std::unique_ptr<RenderWidgetCompositor> Create(
       RenderWidgetCompositorDelegate* delegate,
       float device_scale_factor,
+      const ScreenInfo& screen_info,
       CompositorDependencies* compositor_deps);
 
   ~RenderWidgetCompositor() override;
 
   static cc::LayerTreeSettings GenerateLayerTreeSettings(
       const base::CommandLine& cmd,
       CompositorDependencies* compositor_deps,
-      float device_scale_factor);
+      float device_scale_factor,
+      const ScreenInfo& screen_info);
   static cc::ManagedMemoryPolicy GetGpuMemoryPolicy(
       const cc::ManagedMemoryPolicy& policy);
 
   void SetNeverVisible();
   const base::WeakPtr<cc::InputHandler>& GetInputHandler();
   bool BeginMainFrameRequested() const;
   void SetNeedsDisplayOnAllLayers();
   void SetRasterizeOnlyVisibleContent();
   void SetNeedsRedrawRect(gfx::Rect damage_rect);
   // Like setNeedsRedraw but forces the frame to be drawn, without early-outs.
@@ skipping 119 matching lines @@
     COMPOSITOR_FRAME_SINK_RETRIES_BEFORE_FALLBACK = 4,
     MAX_COMPOSITOR_FRAME_SINK_RETRIES = 5,
   };
 
  protected:
   friend class RenderViewImplScaleFactorTest;
 
   RenderWidgetCompositor(RenderWidgetCompositorDelegate* delegate,
                          CompositorDependencies* compositor_deps);
 
-  void Initialize(float device_scale_factor);
+  void Initialize(float device_scale_factor, const ScreenInfo& screen_info);
   cc::LayerTreeHost* layer_tree_host() { return layer_tree_host_.get(); }
 
  private:
   void LayoutAndUpdateLayers();
   void InvokeLayoutAndPaintCallback();
   bool CompositeIsSynchronous() const;
   void SynchronouslyComposite();
 
   int num_failed_recreate_attempts_;
   RenderWidgetCompositorDelegate* const delegate_;
   CompositorDependencies* const compositor_deps_;
   const bool threaded_;
   std::unique_ptr<cc::AnimationHost> animation_host_;
   std::unique_ptr<cc::LayerTreeHost> layer_tree_host_;
   bool never_visible_;
 
   blink::WebLayoutAndPaintAsyncCallback* layout_and_paint_async_callback_;
 
   RemoteProtoChannel::ProtoReceiver* remote_proto_channel_receiver_;
 
   base::WeakPtrFactory<RenderWidgetCompositor> weak_factory_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_