Implement find in page support for top level BrowserPlugins.

extensions/browser/guest_view/web_view/web_view_guest.h

Index: extensions/browser/guest_view/web_view/web_view_guest.h
diff --git a/extensions/browser/guest_view/web_view/web_view_guest.h b/extensions/browser/guest_view/web_view/web_view_guest.h
index 9b9c702ec9828e1f9ca7b2476e546ca4b2d9615e..ccbabfcefc63932ec805a99ef03f7ed70a419506 100644
--- a/extensions/browser/guest_view/web_view/web_view_guest.h
+++ b/extensions/browser/guest_view/web_view/web_view_guest.h
@@ -177,9 +177,9 @@ class WebViewGuest : public GuestView<WebViewGuest>,
   double GetZoom();
 
   // Begin or continue a find request.
-  void Find(const base::string16& search_text,
-            const blink::WebFindOptions& options,
-            scoped_refptr<WebViewInternalFindFunction> find_function);
+  void StartFinding(const base::string16& search_text,
+                    const blink::WebFindOptions& options,
+                    scoped_refptr<WebViewInternalFindFunction> find_function);
 
   // Conclude a find request to clear highlighting.
   void StopFinding(content::StopFindAction);