Extract ProcessManager from ExtensionSystem.

chrome/browser/renderer_context_menu/render_view_context_menu.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/renderer_context_menu/render_view_context_menu.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 609 matching lines @@
   if (!print_preview_menu_observer_.get()) {
     print_preview_menu_observer_.reset(
         new PrintPreviewContextMenuObserver(source_web_contents_));
   }
 
   observers_.AddObserver(print_preview_menu_observer_.get());
 #endif
 }
 
 const Extension* RenderViewContextMenu::GetExtension() const {
-  extensions::ExtensionSystem* system =
-      extensions::ExtensionSystem::Get(browser_context_);
-  // There is no process manager in some tests.
-  if (!system->process_manager())
-    return NULL;
-
-  return system->process_manager()->GetExtensionForRenderViewHost(
-      source_web_contents_->GetRenderViewHost());
+  return extensions::ProcessManager::Get(browser_context_)
+      ->GetExtensionForRenderViewHost(
+          source_web_contents_->GetRenderViewHost());
 }
 
 void RenderViewContextMenu::AppendDeveloperItems() {
   // Show Inspect Element in DevTools itself only in case of the debug
   // devtools build.
   bool show_developer_items = !IsDevToolsURL(params_.page_url);
 
 #if defined(DEBUG_DEVTOOLS)
   show_developer_items = true;
 #endif
@@ skipping 1144 matching lines @@
   source_web_contents_->GetRenderViewHost()->
       ExecuteMediaPlayerActionAtLocation(location, action);
 }
 
 void RenderViewContextMenu::PluginActionAt(
     const gfx::Point& location,
     const WebPluginAction& action) {
   source_web_contents_->GetRenderViewHost()->
       ExecutePluginActionAtLocation(location, action);
 }