Adds link disambiguation popup support to Windows.

athena/content/web_contents_view_delegate_factory_impl.cc

Index: athena/content/web_contents_view_delegate_factory_impl.cc
diff --git a/athena/content/web_contents_view_delegate_factory_impl.cc b/athena/content/web_contents_view_delegate_factory_impl.cc
index fb0b27d502cecaa00c960bf32faa2e06d23c14c5..4dcc9de07ddbfe74117f0d6c7ee7734af7a18317 100644
--- a/athena/content/web_contents_view_delegate_factory_impl.cc
+++ b/athena/content/web_contents_view_delegate_factory_impl.cc
@@ -51,6 +51,17 @@ class WebContentsViewDelegateImpl : public content::WebContentsViewDelegate {
     // See c/b/ui/views/tab_contents/chrome_web_contents_view_delegate_views.cc
   }
 
+  virtual void ShowDisambiguationPopup(
+      const gfx::Rect& target_rect,
+      const SkBitmap& zoomed_bitmap,
+      const gfx::NativeView content,
+      const base::Callback<void(ui::GestureEvent*)>& gesture_cb,
+      const base::Callback<void(ui::MouseEvent*)>& mouse_cb) OVERRIDE {
+  }
+
+  virtual void HideDisambiguationPopup() OVERRIDE {
+  }
+
   scoped_ptr<RenderViewContextMenuImpl> BuildMenu(
       content::WebContents* web_contents,
       const content::ContextMenuParams& params) {