Move handling of DraggableRegionsChanged notification from "view" to "frame".

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index c2e13f4c53e0feab024dbc4bddd286fbc95a871d..e1a173abb86ba42462e9641cf1ca097ffdc27b6d 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -795,10 +795,16 @@ class BLINK_EXPORT WebFrameClient {
   }
 
   // Loading --------------------------------------------------------------
+
   virtual std::unique_ptr<blink::WebURLLoader> CreateURLLoader() {
     NOTREACHED();
     return nullptr;
   }
+
+  // Other methods --------------------------------------------------------

[dcheng, 2017/06/07 20:22:35]

Nit: let's just call this Draggable regions still, despite the fact that it's
basically a one-off method. Alternatively, we could consider grouping it under
Geometry methods.

[Łukasz Anforowicz, 2017/06/08 16:29:24]

Done:
- I've moved the declaration into "Geometry notifications" section
- I've also changed "Other methods" in WebViewClient.h to "Gestures".

+
+  // Informs the browser that the draggable regions have been updated.
+  virtual void DraggableRegionsChanged() {}
 };
 
 }  // namespace blink