Remaining code for basic tile compression functionality.

cc/raster/tile_task_runner.h

Index: cc/raster/tile_task_runner.h
diff --git a/cc/raster/tile_task_runner.h b/cc/raster/tile_task_runner.h
index 9dffee48c743ab05e306865736be3303a5bac6d0..9ee314c21ee00a24a9fc7657e89b4a06f62ff893 100644
--- a/cc/raster/tile_task_runner.h
+++ b/cc/raster/tile_task_runner.h
@@ -163,10 +163,12 @@ class CC_EXPORT TileTaskRunner {
   virtual void CheckForCompletedTasks() = 0;
 
   // Returns the format to use for the tiles.
-  virtual ResourceFormat GetResourceFormat() const = 0;
+  virtual ResourceFormat GetResourceFormat(bool must_be_noncompressed,
+                                           bool must_support_alpha) const = 0;
 
   // Determine if the resource requires swizzling.
-  virtual bool GetResourceRequiresSwizzle() const = 0;
+  virtual bool GetResourceRequiresSwizzle(bool must_be_noncompressed,
+                                          bool must_support_alpha) const = 0;
 
  protected:
   virtual ~TileTaskRunner() {}