Allow one-copy task tile worker pool to use compressed textures.

cc/tiles/tile_manager.cc

Index: cc/tiles/tile_manager.cc
diff --git a/cc/tiles/tile_manager.cc b/cc/tiles/tile_manager.cc
index b9d3ab7fd1535260af4c358a69181603cdf974ec..3a09995cdb7d922b5fa74337ffc8824302f0536b 100644
--- a/cc/tiles/tile_manager.cc
+++ b/cc/tiles/tile_manager.cc
@@ -668,8 +668,10 @@ scoped_refptr<RasterTask> TileManager::CreateRasterTask(
   if (resource) {
     resource_content_id = tile->invalidated_id();
     DCHECK_EQ(DetermineResourceFormat(tile), resource->format());
-    DCHECK_EQ(tile->desired_texture_size().ToString(),
-              resource->size().ToString());
+    if (!IsResourceFormatCompressed(resource->format())) {
+      DCHECK_EQ(tile->desired_texture_size().ToString(),
+                resource->size().ToString());
+    }
   } else {
     resource = resource_pool_->AcquireResource(tile->desired_texture_size(),
                                                DetermineResourceFormat(tile));