Remaining code for basic tile compression functionality.

cc/raster/zero_copy_tile_task_worker_pool.cc

Index: cc/raster/zero_copy_tile_task_worker_pool.cc
diff --git a/cc/raster/zero_copy_tile_task_worker_pool.cc b/cc/raster/zero_copy_tile_task_worker_pool.cc
index 64fc5f453b387f84e4c7ed0ce3a7c02094615f1b..171ad4e90c67bf5568b93f0447e21313401438e7 100644
--- a/cc/raster/zero_copy_tile_task_worker_pool.cc
+++ b/cc/raster/zero_copy_tile_task_worker_pool.cc
@@ -177,12 +177,17 @@ void ZeroCopyTileTaskWorkerPool::CheckForCompletedTasks() {
   completed_tasks_.clear();
 }
 
-ResourceFormat ZeroCopyTileTaskWorkerPool::GetResourceFormat() const {
+ResourceFormat ZeroCopyTileTaskWorkerPool::GetResourceFormat(
+    bool must_be_noncompressed,
+    bool must_support_alpha) const {
   return resource_provider_->best_texture_format();
 }
 
-bool ZeroCopyTileTaskWorkerPool::GetResourceRequiresSwizzle() const {
-  return !PlatformColor::SameComponentOrder(GetResourceFormat());
+bool ZeroCopyTileTaskWorkerPool::GetResourceRequiresSwizzle(
+    bool must_be_noncompressed,
+    bool must_support_alpha) const {
+  return !PlatformColor::SameComponentOrder(
+             GetResourceFormat(must_be_noncompressed, must_support_alpha));
 }
 
 scoped_ptr<RasterBuffer> ZeroCopyTileTaskWorkerPool::AcquireBufferForRaster(