Add WaitForInterstitialReady to browser_test_utils.

content/public/test/browser_test_utils.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_
 #define CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_
 
 #include <queue>
 #include <string>
 #include <vector>
@@ skipping 225 matching lines @@
 // Waits for an interstitial page to detach from given web contents.
 void WaitForInterstitialDetach(content::WebContents* web_contents);
 
 // Runs task and waits for an interstitial page to detach from given web
 // contents. Prefer this over WaitForInterstitialDetach if web_contents may be
 // destroyed by the time WaitForInterstitialDetach is called (e.g. when waiting
 // for an interstitial detach after closing a tab).
 void RunTaskAndWaitForInterstitialDetach(content::WebContents* web_contents,
                                          const base::Closure& task);
 
+// Waits until all resources have loaded in the given RenderFrameHost.
+// When the load completes, this function sends a "pageLoadComplete" message
+// via domAutomationController. The caller should make sure this extra
+// message is handled properly.
+bool WaitForRenderFrameReady(RenderFrameHost* rfh) WARN_UNUSED_RESULT;
+
 // Watches title changes on a WebContents, blocking until an expected title is
 // set.
 class TitleWatcher : public WebContentsObserver {
  public:
   // |web_contents| must be non-NULL and needs to stay alive for the
   // entire lifetime of |this|. |expected_title| is the title that |this|
   // will wait for.
   TitleWatcher(WebContents* web_contents,
                const base::string16& expected_title);
   ~TitleWatcher() override;
@@ skipping 127 matching lines @@
   WebContents* web_contents_;
   scoped_ptr<RenderViewCreatedObserver> child_observer_;
   scoped_refptr<MessageLoopRunner> runner_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsAddedObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_