Remove calls to deprecated MessageLoop methods in content.

content/browser/devtools/site_per_process_devtools_browsertest.cc

 // Copyright (c) 2014 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.
 
+#include "base/run_loop.h"
 #include "build/build_config.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/site_per_process_browsertest.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/public/test/test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "content/test/content_browser_test_utils_internal.h"
 #include "net/dns/mock_host_resolver.h"
@@ skipping 23 matching lines @@
   }
 
   void AgentHostClosed(
       DevToolsAgentHost* agent_host,
       bool replaced_with_another_client) override {
     closed_ = true;
   }
 
   void WaitForReply() {
     waiting_for_reply_ = true;
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
   }
 
  private:
   bool closed_;
   bool waiting_for_reply_;
 };
 
 // Fails on Android, http://crbug.com/464993.
 #if defined(OS_ANDROID)
 #define MAYBE_CrossSiteIframeAgentHost DISABLED_CrossSiteIframeAgentHost
@@ skipping 135 matching lines @@
       DevToolsAgentHost::GetOrCreateFor(root->current_frame_host());
   EXPECT_NE(main_frame_agent.get(), child_frame_agent.get());
 
   // Agent for web contents should be the the main frame's one.
   scoped_refptr<DevToolsAgentHost> page_agent =
       DevToolsAgentHost::GetOrCreateFor(shell()->web_contents());
   EXPECT_EQ(page_agent.get(), main_frame_agent.get());
 }
 
 }  // namespace content