DisplayCompositor should enforce invariant that frame size and device scale factor are fixed

content/browser/renderer_host/delegated_frame_host_client_aura.cc

 // Copyright 2016 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 "content/browser/renderer_host/delegated_frame_host_client_aura.h"
 
 #include "content/browser/renderer_host/compositor_resize_lock_aura.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 #include "content/common/view_messages.h"
@@ skipping 93 matching lines @@
     render_widget_host_view_->added_frame_observer_ = false;
   }
   render_widget_host_view_->begin_frame_source_ = source;
   render_widget_host_view_->UpdateNeedsBeginFramesInternal();
 }
 
 bool DelegatedFrameHostClientAura::IsAutoResizeEnabled() const {
   return render_widget_host_view_->host_->auto_resize_enabled();
 }
 
+void DelegatedFrameHostClientAura::ReceivedBadMessage(
+    bad_message::BadMessageReason reason) {
+  bad_message::ReceivedBadMessage(
+      render_widget_host_view_->GetRenderWidgetHost()->GetProcess(), reason);
+}
+
 }  // namespace content