[cc] Tiles and tile manager for impl side painting

cc/tile_manager.cc

Index: cc/tile_manager.cc
diff --git a/cc/tile_manager.cc b/cc/tile_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..68f399c3bdc417ac0565336b7a22ee90acce2744
--- /dev/null
+++ b/cc/tile_manager.cc
@@ -0,0 +1,33 @@
+// Copyright 2012 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_manager.h"
+
+#include "base/logging.h"
+
+namespace cc {
+
+TileManager::TileManager(TileManagerClient* client) {
+}
+
+TileManager::~TileManager() {
+  DCHECK(registered_tiles_.size() == 0);
+}
+
+void TileManager::RegisterTile(Tile* tile) {
+  registered_tiles_.push_back(tile);
+}
+
+void TileManager::UnregisterTile(Tile* tile) {
+  // TODO(nduca): Known slow. Shrug. Fish need frying.
+  for (size_t i =  0; i < registered_tiles_.size(); i++) {
+    if (registered_tiles_[i] == tile) {
+      registered_tiles_.erase(registered_tiles_.begin() + i);
+      return;
+    }
+  }
+  DCHECK(false) << "Tile " << tile << " wasnt regitered.";
+}
+
+}