Adds link disambiguation popup support to Windows.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 2c57a2b78d543dafaff3170cf9d2447cc2ce5d62..d6576e7e184467c810cd386bb22a740c5f788663 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1686,13 +1686,17 @@ void RenderWidgetHostImpl::OnShowDisambiguationPopup(
   SkBitmap zoomed_bitmap;
   zoomed_bitmap.installPixels(info, bitmap->pixels(), info.minRowBytes());
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
+  // Note that |rect| is in coordinates of pixels relative to the window origin.
+  // Aura-based systems will want to convert this to DIPs.
   if (view_)
     view_->ShowDisambiguationPopup(rect, zoomed_bitmap);

[sky, 2014/09/11 14:53:43]

rect->rect_pixels and similarly rename in
RenderWidgetHostView::ShowDisambiguationPopup so that it's clear what the
coordinates are. In fact, is there a reason we can't convert to dips here?

[luken, 2014/09/17 00:00:48]

Renamed. The Android code needs pixels. I just added the comment to help clear
it up.

 #else
   NOTIMPLEMENTED();
 #endif
 
+  // It is assumed that the disambiguation popup will make a copy of the
+  // provided zoomed image, so we delete this one.
   zoomed_bitmap.setPixels(0);
   Send(new ViewMsg_ReleaseDisambiguationPopupBitmap(GetRoutingID(), id));
 }