Plumb ViewportMetrics change notifications around the world and back.

mojo/services/view_manager/public/cpp/lib/view_private.h

 // Copyright 2014 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.
 
 #ifndef MOJO_SERVICES_VIEW_MANAGER_PUBLIC_CPP_LIB_VIEW_PRIVATE_H_
 #define MOJO_SERVICES_VIEW_MANAGER_PUBLIC_CPP_LIB_VIEW_PRIVATE_H_
 
 #include "base/basictypes.h"
 
 #include "view_manager/public/cpp/view.h"
@@ skipping 21 matching lines @@
   void set_id(Id id) { view_->id_ = id; }
 
   void set_view_manager(ViewManager* manager) {
     view_->manager_ = manager;
   }
 
   void set_properties(const std::map<std::string, std::vector<uint8_t>>& data) {
     view_->properties_ = data;
   }
 
-  void set_viewport_metrics(ViewportMetricsPtr viewport_metrics) {
-    view_->viewport_metrics_ = viewport_metrics.Pass();
+  void LocalSetViewportMetrics(const ViewportMetrics& old_metrics,
+                               const ViewportMetrics& new_metrics) {
+    view_->LocalSetViewportMetrics(new_metrics, new_metrics);
   }
 
   void LocalDestroy() {
     view_->LocalDestroy();
   }
   void LocalAddChild(View* child) {
     view_->LocalAddChild(child);
   }
   void LocalRemoveChild(View* child) {
     view_->LocalRemoveChild(child);
   }
   void LocalReorder(View* relative, OrderDirection direction) {
     view_->LocalReorder(relative, direction);
   }
   void LocalSetBounds(const Rect& old_bounds,
                       const Rect& new_bounds) {
     view_->LocalSetBounds(old_bounds, new_bounds);
   }
   void LocalSetDrawn(bool drawn) { view_->LocalSetDrawn(drawn); }
 
  private:
   View* view_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewPrivate);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_VIEW_MANAGER_PUBLIC_CPP_LIB_VIEW_PRIVATE_H_