Getting RenderWidgetHostViewWin ready for a GestureRecognizer.

content/browser/renderer_host/render_widget_host_view_win.h

Index: content/browser/renderer_host/render_widget_host_view_win.h
diff --git a/content/browser/renderer_host/render_widget_host_view_win.h b/content/browser/renderer_host/render_widget_host_view_win.h
index e1178947cbc53d71ca5eca1e5e9484fc07b00ea2..58bdbb1649dd6f5e51758b6fca11e29ea6d3612e 100644
--- a/content/browser/renderer_host/render_widget_host_view_win.h
+++ b/content/browser/renderer_host/render_widget_host_view_win.h
@@ -24,6 +24,7 @@
 #include "content/common/content_export.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "ui/base/gestures/gesture_types.h"
 #include "ui/base/win/ime_input.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
@@ -48,6 +49,7 @@ class Message;
 }
 
 namespace ui {
+class GestureRecognizer;
 class ViewProp;
 }
 
@@ -94,7 +96,8 @@ class RenderWidgetHostViewWin
       public content::RenderWidgetHostViewBase,
       public content::NotificationObserver,
       public BrowserAccessibilityDelegate,
-      public gfx::SysColorChangeListener {
+      public gfx::SysColorChangeListener,
+      public ui::GestureEventHelper {
  public:
   virtual ~RenderWidgetHostViewWin();
 
@@ -248,6 +251,21 @@ class RenderWidgetHostViewWin
   // Implementation of SysColorChangeListener:
   virtual void OnSysColorChange() OVERRIDE;
 
+  // Overridden from ui::GestureEventHelper.
+  virtual ui::GestureEvent* CreateGestureEvent(ui::EventType type,

[tfarina, 2012/05/04 00:15:32]

move to the next line.

[girard, 2012/05/04 00:58:30]

Done.

+      const gfx::Point& location,
+      int flags,
+      const base::Time time,

[tfarina, 2012/05/04 00:15:32]

const base::Time& ?

[girard, 2012/05/04 00:58:30]

Agreed.  This is a virtual function, so the change will impact many other
files;(

+      float param_first,
+      float param_second,
+      unsigned int touch_id_bitfield) OVERRIDE;

[tfarina, 2012/05/04 00:15:32]

uint16?

+  virtual ui::TouchEvent* CreateTouchEvent(ui::EventType type,

[tfarina, 2012/05/04 00:15:32]

move to the next line.

[girard, 2012/05/04 00:58:30]

Done.

+      const gfx::Point& location,
+      int touch_id,
+      base::TimeDelta time_stamp) OVERRIDE;

[tfarina, 2012/05/04 00:15:32]

does time_stamp needs to be passed by value? can it be passed by
const-reference?

[girard, 2012/05/04 00:58:30]

Another virtual function changes signature;)  Done.

+  virtual bool DispatchLongPressGestureEvent(ui::GestureEvent* event) OVERRIDE;
+  virtual bool DispatchCancelTouchEvent(ui::TouchEvent* event) OVERRIDE;
+
  protected:
   friend class content::RenderWidgetHostView;
 
@@ -470,6 +488,8 @@ class RenderWidgetHostViewWin
   // is removed from the list on an TOUCHEVENTF_UP message.
   WebTouchState touch_state_;
 
+  scoped_ptr<ui::GestureRecognizer> gesture_recognizer_;
+
   // True if we're in the midst of a paint operation and should respond to
   // DidPaintRect() notifications by merely invalidating.  See comments on
   // render_widget_host_view.h:DidPaintRect().