Remaining code for basic tile compression functionality.

cc/raster/bitmap_tile_task_worker_pool.cc

Index: cc/raster/bitmap_tile_task_worker_pool.cc
diff --git a/cc/raster/bitmap_tile_task_worker_pool.cc b/cc/raster/bitmap_tile_task_worker_pool.cc
index bd6af35215c9dbbf1452d92eba88ba82d2349ee9..4e7e59ba71f40c3419815eeb8d2d94cbe1b2b623 100644
--- a/cc/raster/bitmap_tile_task_worker_pool.cc
+++ b/cc/raster/bitmap_tile_task_worker_pool.cc
@@ -179,12 +179,17 @@ void BitmapTileTaskWorkerPool::CheckForCompletedTasks() {
   completed_tasks_.clear();
 }
 
-ResourceFormat BitmapTileTaskWorkerPool::GetResourceFormat() const {
+ResourceFormat BitmapTileTaskWorkerPool::GetResourceFormat(
+    bool must_be_noncompressed,
+    bool must_support_alpha) const {
   return resource_provider_->best_texture_format();
 }
 
-bool BitmapTileTaskWorkerPool::GetResourceRequiresSwizzle() const {
-  return !PlatformColor::SameComponentOrder(GetResourceFormat());
+bool BitmapTileTaskWorkerPool::GetResourceRequiresSwizzle(
+    bool must_be_noncompressed,
+    bool must_support_alpha) const {
+  return !PlatformColor::SameComponentOrder(
+             GetResourceFormat(must_be_noncompressed, must_support_alpha));
 }
 
 scoped_ptr<RasterBuffer> BitmapTileTaskWorkerPool::AcquireBufferForRaster(