<webview>: Correctly shift focus between WebContents.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index c9e3649b0621769ed721702b16df5913fc23d2ab..bfa64b8889144c539495109c799385bf18faa460 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -654,6 +654,8 @@ class CONTENT_EXPORT WebContentsImpl
   void ReplicatePageFocus(bool is_focused) override;
   RenderWidgetHostImpl* GetFocusedRenderWidgetHost(
       RenderWidgetHostImpl* receiving_widget) override;
+  void EnsureOwningContentsIsFocused(
+      RenderWidgetHostImpl* render_widget_host) override;
   void RendererUnresponsive(RenderWidgetHostImpl* render_widget_host,
                             RendererUnresponsiveType type) override;
   void RendererResponsive(RenderWidgetHostImpl* render_widget_host) override;
@@ -1017,6 +1019,10 @@ class CONTENT_EXPORT WebContentsImpl
   // Returns the root of the WebContents tree.
   WebContentsImpl* GetOutermostWebContents();
 
+  // Become the focused WebContentsImpl. This will activate this content's
+  // RenderWidget and direct keyboard input to it.
+  void ChangeFocus(WebContentsImpl* old_contents);
+
   // Navigation helpers --------------------------------------------------------
   //
   // These functions are helpers for Navigate() and DidNavigate().