Enable touch-initiated drag-drop work on Windows

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 17f6a47927c3e992f152b42ee14ccf56b060a3ee..815fd3867d6f08dfe45a73eae3c5e5e2f2b9ed4d 100644
--- a/content/browser/renderer_host/render_widget_host_view_win.h
+++ b/content/browser/renderer_host/render_widget_host_view_win.h
@@ -284,6 +284,9 @@ class RenderWidgetHostViewWin
       base::i18n::TextDirection direction) OVERRIDE;
   virtual void ExtendSelectionAndDelete(size_t before, size_t after) OVERRIDE;
 
+  bool has_valid_long_press_gesture() { return has_valid_long_press_gesture_; }

[dcheng, 2013/04/15 18:07:37]

Nit: make this const.

[Hongbo Min, 2013/05/16 14:47:59]

Done.

+  void CancelLongPressGesture() { has_valid_long_press_gesture_ = false; }
+
  protected:
   friend class RenderWidgetHostView;
 
@@ -594,6 +597,10 @@ class RenderWidgetHostViewWin
   // The OS-provided default IAccessible instance for our hwnd.
   base::win::ScopedComPtr<IAccessible> window_iaccessible_;
 
+  // True if the long press gesture is forwarded to renderer process and still
+  // in a valid status, e.g. no mouse up event happens.
+  bool has_valid_long_press_gesture_;

[dcheng, 2013/04/15 18:07:37]

Perhaps just call this "in_long_press_gesture".

[Hongbo Min, 2013/05/16 14:47:59]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewWin);
 };