Extract ProcessManager from ExtensionSystem.

chrome/browser/chromeos/login/signin/oauth2_browsertest.cc

 // Copyright 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 <string>
 
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 642 matching lines @@
     bool result;
     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
         contents,
         "window.domAutomationController.send(!!(" + expression + "));",
          &result));
     ASSERT_TRUE(result) << expression;
   }
 
   const GURL& GetBackGroundPageUrl(const std::string& extension_id) {
     extensions::ProcessManager* manager =
-        extensions::ExtensionSystem::Get(profile())->process_manager();
+        extensions::ProcessManager::Get(profile());
     extensions::ExtensionHost* host =
         manager->GetBackgroundHostForExtension(extension_id);
     return host->host_contents()->GetURL();
   }
 
   void JsExpectOnBackgroundPage(const std::string& extension_id,
                                 const std::string& expression) {
     extensions::ProcessManager* manager =
-        extensions::ExtensionSystem::Get(profile())->process_manager();
+        extensions::ProcessManager::Get(profile());
     extensions::ExtensionHost* host =
         manager->GetBackgroundHostForExtension(extension_id);
     if (host == NULL) {
       ADD_FAILURE() << "Extension " << extension_id
                     << " has no background page.";
       return;
     }
 
     JsExpect(host->host_contents(), expression);
   }
@@ skipping 107 matching lines @@
 
   if (!catcher.GetNextResult()) {
     std::string message = catcher.message();
     ADD_FAILURE() << "Tests failed: " << message;
   }
 
   EXPECT_TRUE(fake_google_.IsPageRequested());
 }
 
 }  // namespace chromeos