Extract ProcessManager from ExtensionSystem.

extensions/browser/extension_function_dispatcher.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 "extensions/browser/extension_function_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 392 matching lines @@
   // if function->Run() ended up closing the tab that owns us.
 
   // Check if extension was uninstalled by management.uninstall.
   if (!registry->enabled_extensions().GetByID(params.extension_id))
     return;
 
   // We only adjust the keepalive count for UIThreadExtensionFunction for
   // now, largely for simplicity's sake. This is OK because currently, only
   // the webRequest API uses IOThreadExtensionFunction, and that API is not
   // compatible with lazy background pages.
-  extension_system->process_manager()->IncrementLazyKeepaliveCount(extension);
+  ProcessManager::Get(browser_context_)->IncrementLazyKeepaliveCount(extension);
 }
 
 void ExtensionFunctionDispatcher::OnExtensionFunctionCompleted(
     const Extension* extension) {
   if (extension) {
-    ExtensionSystem::Get(browser_context_)
-        ->process_manager()
+    ProcessManager::Get(browser_context_)
         ->DecrementLazyKeepaliveCount(extension);
   }
 }
 
 // static
 bool ExtensionFunctionDispatcher::CheckPermissions(
     ExtensionFunction* function,
     const ExtensionHostMsg_Request_Params& params,
     const ExtensionFunction::ResponseCallback& callback) {
   if (!function->HasPermission()) {
@@ skipping 38 matching lines @@
 
 // static
 void ExtensionFunctionDispatcher::SendAccessDenied(
     const ExtensionFunction::ResponseCallback& callback) {
   base::ListValue empty_list;
   callback.Run(ExtensionFunction::FAILED, empty_list,
                "Access to extension API denied.");
 }
 
 }  // namespace extensions