Adds link disambiguation popup support to Windows.

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index d3c5d7ae8119d09be21a72d2b5a7f593e6d90b05..ab82fd13789f6f66923ec8f255b452715e35123d 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -19,6 +19,7 @@
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
+#include "content/browser/renderer_host/web_input_event_aura.h"
 #include "content/browser/web_contents/aura/gesture_nav_simple.h"
 #include "content/browser/web_contents/aura/image_window_delegate.h"
 #include "content/browser/web_contents/aura/overscroll_navigation_overlay.h"
@@ -811,7 +812,7 @@ void WebContentsViewAura::InstallOverscrollControllerDelegate(
 void WebContentsViewAura::PrepareOverscrollWindow() {
   // If there is an existing |overscroll_window_| which is in the middle of an
   // animation, then destroying the window here causes the animation to be
-  // completed immidiately, which triggers |OnImplicitAnimationsCompleted()|
+  // completed immediately, which triggers |OnImplicitAnimationsCompleted()|
   // callback, and that tries to reset |overscroll_window_| again, causing a
   // double-free. So use a temporary variable here.
   if (overscroll_window_) {
@@ -989,6 +990,22 @@ void WebContentsViewAura::OverscrollUpdateForWebContentsDelegate(int delta_y) {
     web_contents_->GetDelegate()->OverscrollUpdate(delta_y);
 }
 
+void WebContentsViewAura::ProcessLinkDisambiguationGesture(

[jam, 2014/07/30 20:29:03]

this should be behind the ifdef as well?

[luken, 2014/07/31 01:41:47]

Done.

+    ui::GestureEvent* event) {
+  blink::WebGestureEvent web_gesture = content::MakeWebGestureEvent(event);
+  // If we fail to make a WebGestureEvent that is a Tap from the provided event,
+  // don't forward it to Blink.
+  if (web_gesture.type < blink::WebInputEvent::Type::GestureTap ||
+      web_gesture.type > blink::WebInputEvent::Type::GestureTapCancel)
+    return;
+
+  RenderWidgetHostViewAura* rwhva =
+      ToRenderWidgetHostViewAura(web_contents_->GetRenderWidgetHostView());
+  RenderWidgetHostImpl* host =
+      RenderWidgetHostImpl::From(rwhva->GetRenderWidgetHost());
+  host->ForwardGestureEvent(web_gesture);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebContentsViewAura, WebContentsView implementation:
 
@@ -1270,6 +1287,21 @@ void WebContentsViewAura::TakeFocus(bool reverse) {
   }
 }
 
+#if defined(OS_WIN)
+void WebContentsViewAura::ShowDisambiguationPopup(
+    const gfx::Rect& target_rect,
+    const SkBitmap& zoomed_bitmap) {
+  if (delegate_) {
+    delegate_->ShowLinkDisambiguationPopup(
+        target_rect,
+        zoomed_bitmap,
+        window_.get(),
+        base::Bind(&WebContentsViewAura::ProcessLinkDisambiguationGesture,
+                   base::Unretained(this)));
+  }
+}
+#endif
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebContentsViewAura, OverscrollControllerDelegate implementation: