cc: Refactored Tile::GetResourceId

cc/tile_drawing_info.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cc/tile_drawing_info.h"
+
+namespace cc {
+
+bool TileDrawingInfo::IsReadyToDraw() const {
+  switch(mode_) {
+    case TEXTURE_MODE:
+      return resource_ &&
+             !resource_is_being_initialized_ &&
+             resource_->id();
+    case SOLID_COLOR_MODE:
+    case TRANSPARENT_MODE:
+    case PICTURE_PILE_MODE:
+      return true;
+    default:
+      NOTREACHED();
+      return false;
+  }
+}
+
+} // namespace cc