cc: Allow DeferredInitialize to use DelegatingRenderer

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 09b12a3245ee32dcc9d63438dea3d87e1c261804..de683e707d1302630732905490000848954c9735 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -1321,6 +1321,15 @@ void ResourceProvider::CleanUpGLIfNeeded() {
   }
 
   DCHECK(gl);
+#if DCHECK_IS_ON
+  // Check that all GL resources has been deleted.
+  for (ResourceMap::const_iterator itr = resources_.begin();
+       itr != resources_.end();
+       ++itr) {
+    DCHECK_NE(GLTexture, itr->second.type);
+  }
+#endif  // DCHECK_IS_ON
+
   texture_uploader_.reset();
   texture_id_allocator_.reset();
   buffer_id_allocator_.reset();