Remove WebContents::GetRoutingID().

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index af944f72e827f267e4b102e4fbc96d61bcc1c451..dab16864e025c301c613328f12f8f576cdb5742c 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -263,10 +263,6 @@ class WebContents : public PageNavigator,
   // Gets the current RenderViewHost for this tab.
   virtual RenderViewHost* GetRenderViewHost() const = 0;
 
-  // Gets the current RenderViewHost's routing id. Returns
-  // MSG_ROUTING_NONE when there is no RenderViewHost.
-  virtual int GetRoutingID() const = 0;

[alexmos, 2016/11/22 01:29:06]

Interestingly, the old code handled the case where the RenderViewHost was null,
but I don't think that's actually possible, and regardless, both old and new
code would crash on GetRoutingID() if the RenderViewHost was ever null.

-
   // Returns the currently active RenderWidgetHostView. This may change over
   // time and can be nullptr (during setup and teardown).
   virtual RenderWidgetHostView* GetRenderWidgetHostView() const = 0;