cc: Move ResourcePool ownership to LTHI.

cc/resources/rasterizer.h

Index: cc/resources/rasterizer.h
diff --git a/cc/resources/rasterizer.h b/cc/resources/rasterizer.h
index d53e400b4f81ff09731d7bee2e1a132480c685de..432256dffb955bb8fa839add5aadaa02682ea2ff 100644
--- a/cc/resources/rasterizer.h
+++ b/cc/resources/rasterizer.h
@@ -162,12 +162,6 @@ class CC_EXPORT Rasterizer {
   // Check for completed tasks and dispatch reply callbacks.
   virtual void CheckForCompletedTasks() = 0;
 
-  // Returns the target that needs to be used for raster task resources.
-  virtual unsigned GetResourceTarget() const = 0;
-
-  // Returns the format that needs to be used for raster task resources.
-  virtual ResourceFormat GetResourceFormat() const = 0;
-
  protected:
   virtual ~Rasterizer() {}
 };