Plumb ViewportMetrics change notifications around the world and back.

services/view_manager/test_change_tracker.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 SERVICES_VIEW_MANAGER_TEST_CHANGE_TRACKER_H_
 #define SERVICES_VIEW_MANAGER_TEST_CHANGE_TRACKER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "mojo/services/geometry/public/interfaces/geometry.mojom.h"
 #include "mojo/services/view_manager/public/cpp/types.h"
 #include "mojo/services/view_manager/public/interfaces/view_manager.mojom.h"
 
 namespace view_manager {
 
 enum ChangeType {
   CHANGE_TYPE_EMBED,
   CHANGE_TYPE_EMBEDDED_APP_DISCONNECTED,
   // TODO(sky): NODE->VIEW.
   CHANGE_TYPE_NODE_BOUNDS_CHANGED,
+  CHANGE_TYPE_NODE_VIEWPORT_METRICS_CHANGED,
   CHANGE_TYPE_NODE_HIERARCHY_CHANGED,
   CHANGE_TYPE_NODE_REORDERED,
   CHANGE_TYPE_NODE_VISIBILITY_CHANGED,
   CHANGE_TYPE_NODE_DRAWN_STATE_CHANGED,
   CHANGE_TYPE_NODE_DELETED,
   CHANGE_TYPE_INPUT_EVENT,
   CHANGE_TYPE_PROPERTY_CHANGED,
   CHANGE_TYPE_DELEGATE_EMBED,
 };
 
@@ skipping 83 matching lines @@
 
   // Each of these functions generate a Change. There is one per
   // ViewManagerClient function.
   void OnEmbed(mojo::ConnectionSpecificId connection_id,
                const mojo::String& creator_url,
                mojo::ViewDataPtr root);
   void OnEmbeddedAppDisconnected(mojo::Id view_id);
   void OnViewBoundsChanged(mojo::Id view_id,
                            mojo::RectPtr old_bounds,
                            mojo::RectPtr new_bounds);
+  void OnViewViewportMetricsChanged(mojo::ViewportMetricsPtr old_bounds,
+                                    mojo::ViewportMetricsPtr new_bounds);
   void OnViewHierarchyChanged(mojo::Id view_id,
                               mojo::Id new_parent_id,
                               mojo::Id old_parent_id,
                               mojo::Array<mojo::ViewDataPtr> views);
   void OnViewReordered(mojo::Id view_id,
                        mojo::Id relative_view_id,
                        mojo::OrderDirection direction);
   void OnViewDeleted(mojo::Id view_id);
   void OnViewVisibilityChanged(mojo::Id view_id, bool visible);
   void OnViewDrawnStateChanged(mojo::Id view_id, bool drawn);
   void OnViewInputEvent(mojo::Id view_id, mojo::EventPtr event);
   void OnViewSharedPropertyChanged(mojo::Id view_id,
                                    mojo::String name,
                                    mojo::Array<uint8_t> data);
   void DelegateEmbed(const mojo::String& url);
 
  private:
   void AddChange(const Change& change);
 
   Delegate* delegate_;
   std::vector<Change> changes_;
 
   DISALLOW_COPY_AND_ASSIGN(TestChangeTracker);
 };
 
 }  // namespace view_manager
 
 #endif  // SERVICES_VIEW_MANAGER_TEST_CHANGE_TRACKER_H_