cc/blimp: Add a LayerTreeHostRemote implementation.

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index 5610ff703430ad2fd8e0630e05e8b64c01de46c8..606e472712fcc6785fb06b43564e9c064f6384e1 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -54,7 +54,7 @@ class CC_EXPORT LayerTreeHost {
 
   // Returns the UIResourceManager used to create UIResources for
   // UIResourceLayers pushed to the LayerTree.
-  virtual UIResourceManager* GetUIResourceManager() const = 0;
+  virtual UIResourceManager* GetUIResourceManager() = 0;

[danakj, 2016/09/30 22:37:13]

can stay const?

[Khushal, 2016/10/01 00:53:48]

Done.

 
   // Returns the TaskRunnerProvider used to access the main and compositor
   // thread task runners.
@@ -199,6 +199,10 @@ class CC_EXPORT LayerTreeHost {
   // The LayerTreeHost tracks whether the content is suitable for Gpu raster.
   // Calling this will reset it back to not suitable state.
   virtual void ResetGpuRasterizationTracking() = 0;
+
+ protected:
+  // Used to generate a unique identifier for a LayerTreeHost.
+  static int GenerateHostId();

[danakj, 2016/09/30 22:37:13]

Ya, prefer to keep this inside each impl.

[Khushal, 2016/10/01 00:53:48]

Done.

 };
 
 }  // namespace cc