Convert more test helpers to base::RunLoop, fix page title checks. (Reland)

content/test/content_browser_test_utils_internal.h

Index: content/test/content_browser_test_utils_internal.h
diff --git a/content/test/content_browser_test_utils_internal.h b/content/test/content_browser_test_utils_internal.h
index 45755866193344be1d0a96e571ef0b25995a9ba0..bdcbb8dbefb2e446ac18f2b4a9a96b0b0e0b0765 100644
--- a/content/test/content_browser_test_utils_internal.h
+++ b/content/test/content_browser_test_utils_internal.h
@@ -17,6 +17,7 @@
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/run_loop.h"
 #include "cc/surfaces/surface_id.h"
 #include "content/public/browser/resource_dispatcher_host_delegate.h"
 #include "content/public/browser/web_contents_delegate.h"
@@ -31,7 +32,6 @@ class SurfaceManager;
 namespace content {
 
 class FrameTreeNode;
-class MessageLoopRunner;
 class RenderFrameHost;
 class RenderWidgetHostViewChildFrame;
 class Shell;
@@ -199,8 +199,8 @@ class UrlCommitObserver : WebContentsObserver {
   // The URL this observer is expecting to be committed.
   GURL url_;
 
-  // The MessageLoopRunner used to spin the message loop.
-  scoped_refptr<MessageLoopRunner> message_loop_runner_;
+  // The RunLoop used to spin the message loop.
+  base::RunLoop run_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(UrlCommitObserver);
 };