Enable touch for autofill popup view

chrome/browser/ui/autofill/autofill_popup_controller.h

 // Copyright (c) 2012 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 CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 18 matching lines @@
  public:
   // Called when the popup should get hidden.
   virtual void Hide() = 0;
 
   // Called whent the popup view was destroyed.
   virtual void ViewDestroyed() = 0;
 
   // Recalculates the height and width of the popup and triggers a redraw.
   virtual void UpdateBoundsAndRedrawPopup() = 0;
 
-  // The user has moved the mouse within the popup.
-  virtual void MouseHovered(int x, int y) = 0;
+  // The line at (x, y) is selected (e.g., mouse hovered).

[Ilya Sherman, 2013/11/05 18:39:45]

nit: "is" -> "was"; or better yet, something like "The user selected the line at
(x, y), e.g. by hovering the mouse cursor."  Please also document that (x, y)
must be within the bounds of the popup.  Ditto for the docs below.

[mohsen, 2013/11/05 19:52:36]

Done.

+  virtual void LineSelectedAtPoint(int x, int y) = 0;
 
-  // The user clicked the mouse within the popup.
-  virtual void MouseClicked(int x, int y) = 0;
+  // The line at (x, y) is accepted (e.g., mouse clicked).
+  virtual void LineAcceptedAtPoint(int x, int y) = 0;
 
-  // The user has moved the mouse outside of the popup.
-  virtual void MouseExitedPopup() = 0;
+  // The selection is cleared (e.g., mouse exited popup).
+  virtual void SelectionCleared() = 0;
 
   // Whether |event| should be reposted to the native window management.
   virtual bool ShouldRepostEvent(const ui::MouseEvent& event) = 0;
 
   // Accepts the suggestion at |index|.
   virtual void AcceptSuggestion(size_t index) = 0;
 
   // Gets the resource value for the given resource, returning -1 if the
   // resource isn't recognized.
   virtual int GetIconResourceID(const string16& resource_name) = 0;
@@ skipping 53 matching lines @@
   // Whether the view should be hidden on outside mouse presses.
   virtual bool hide_on_outside_click() const = 0;
 
  protected:
   virtual ~AutofillPopupController() {}
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_H_