Extract ProcessManager from ExtensionSystem.

chrome/browser/extensions/chrome_content_browser_client_extensions_part.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 "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 242 matching lines @@
   std::set<int> process_ids;
   size_t max_process_count =
       content::RenderProcessHost::GetMaxRendererProcessCount();
 
   // Go through all profiles to ensure we have total count of extension
   // processes containing background pages, otherwise one profile can
   // starve the other.
   std::vector<Profile*> profiles = g_browser_process->profile_manager()->
       GetLoadedProfiles();
   for (size_t i = 0; i < profiles.size(); ++i) {
-    ProcessManager* epm = ExtensionSystem::Get(profiles[i])->process_manager();
+    ProcessManager* epm = ProcessManager::Get(profiles[i]);
     for (ProcessManager::const_iterator iter = epm->background_hosts().begin();
          iter != epm->background_hosts().end(); ++iter) {
       const ExtensionHost* host = *iter;
       process_ids.insert(host->render_process_host()->GetID());
     }
   }
 
   return (process_ids.size() >
           (max_process_count * chrome::kMaxShareOfExtensionProcesses));
 }
@@ skipping 255 matching lines @@
   DCHECK(profile);
   if (ProcessMap::Get(profile)->Contains(process->GetID())) {
     command_line->AppendSwitch(switches::kExtensionProcess);
 #if defined(ENABLE_WEBRTC)
     command_line->AppendSwitch(::switches::kEnableWebRtcHWH264Encoding);
 #endif
   }
 }
 
 }  // namespace extensions