Adds link disambiguation popup support to Windows.

ash/root_window_controller.cc

 // 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.
 
 #include "ash/root_window_controller.h"
 
 #include <queue>
 #include <vector>
 
 #include "ash/ash_constants.h"
@@ skipping 238 matching lines @@
   virtual void OnWindowDestroying(aura::Window* window) OVERRIDE {}
   virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE {
     delete this;
   }
   virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE {
   }
   virtual bool HasHitTestMask() const OVERRIDE {
     return false;
   }
   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE {}
+  virtual void OnLinkDisambiguationPopupRequested(
+      const gfx::Rect& target_rect, const SkBitmap& zoomed_bitmap) OVERRIDE {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(EmptyWindowDelegate);
 };
 
 #if defined(OS_CHROMEOS)
 // Responsible for initializing TouchExplorationController when spoken
 // feedback is on.
 class CrosAccessibilityObserver : public AccessibilityObserver {
  public:
@@ skipping 862 matching lines @@
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace ash