Initial views touchui GestureRecognizer support

views/touchui/gesture_manager.h

 // Copyright (c) 2011 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 VIEWS_TOUCHUI_GESTURE_MANAGER_H_
 #define VIEWS_TOUCHUI_GESTURE_MANAGER_H_
 #pragma once
 
 #include "base/memory/singleton.h"
+#include "views/touchui/gesture_recognizer.h"
 #include "views/view.h"
 
 namespace ui {
 enum TouchStatus;
 }
 
 namespace views {
 class TouchEvent;
 
 // A GestureManager singleton detects gestures occurring in the
@@ skipping 21 matching lines @@
 
   // TODO(rjkroege): Write the remainder of this class.
   // It will appear in a subsequent CL.
 
  protected:
   GestureManager();
 
  private:
   friend struct DefaultSingletonTraits<GestureManager>;
 
+  // Source view's RootView, This instance is not owned by GestureManager.
+  // See ProcessTouchEventForGesture() for source definition.
+  // Note: Simultaneous Gestures happening across two different RootViews are

[rjkroege, 2011/10/27 23:10:07]

in touchui, there is only one root view.

This would need to be different for aura. The gesture manager might rightly
belong in aura::Desktop

[Gajen, 2011/10/31 13:34:30]

Discarded completely as GR is now derived from GM

+  // Not Recognized. Exception to this is TYPE_CHILD widget which still could
+  // be NativeWidgetGtk.
+  RootView* root_view_;
+
+  // GestureRecognizer instance.
+  GestureRecognizer gesture_recognizer_;
+
   DISALLOW_COPY_AND_ASSIGN(GestureManager);
 };
 
 
 }  // namespace views
 
 #endif  // VIEWS_TOUCHUI_GESTURE_MANAGER_H_