Introduce AppsClient and use it in apps to get the loaded profiles list.

apps/shell_window_registry.h

 // Copyright 2013 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.
 
 #ifndef APPS_SHELL_WINDOW_REGISTRY_H_
 #define APPS_SHELL_WINDOW_REGISTRY_H_
 
 #include <list>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
 #include "components/browser_context_keyed_service/browser_context_keyed_service.h"
 #include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
 #include "ui/gfx/native_widget_types.h"
 
-class Profile;
-
 namespace content {
+class BrowserContext;
 class DevToolsAgentHost;
 class RenderViewHost;
 }
 
 namespace apps {
 
 class ShellWindow;
 
 // The ShellWindowRegistry tracks the ShellWindows for all platform apps for a
-// particular profile.
-// This class is planned to evolve into tracking all PlatformApps for a
-// particular profile, with a PlatformApp encapsulating all views (background
-// page, shell windows, tray view, panels etc.) and other app level behaviour
-// (e.g. notifications the app is interested in, lifetime of the background
-// page).
+// particular browser context.
 class ShellWindowRegistry : public BrowserContextKeyedService {
  public:
   class Observer {
    public:
     // Called just after a shell window was added.
     virtual void OnShellWindowAdded(apps::ShellWindow* shell_window) = 0;
     // Called when the window icon changes.
     virtual void OnShellWindowIconChanged(apps::ShellWindow* shell_window) = 0;
     // Called just after a shell window was removed.
     virtual void OnShellWindowRemoved(apps::ShellWindow* shell_window) = 0;
 
    protected:
     virtual ~Observer() {}
   };
 
   typedef std::list<apps::ShellWindow*> ShellWindowList;
   typedef ShellWindowList::const_iterator const_iterator;
   typedef std::set<std::string> InspectedWindowSet;
 
-  explicit ShellWindowRegistry(Profile* profile);
+  explicit ShellWindowRegistry(content::BrowserContext* context);
   virtual ~ShellWindowRegistry();
 
-  // Returns the instance for the given profile, or NULL if none. This is
-  // a convenience wrapper around ShellWindowRegistry::Factory::GetForProfile.
-  static ShellWindowRegistry* Get(Profile* profile);
+  // Returns the instance for the given browser context, or NULL if none. This
+  // is a convenience wrapper around
+  // ShellWindowRegistry::Factory::GetForBrowserContext().
+  static ShellWindowRegistry* Get(content::BrowserContext* context);
 
   void AddShellWindow(apps::ShellWindow* shell_window);
   void ShellWindowIconChanged(apps::ShellWindow* shell_window);
   // Called by |shell_window| when it is activated.
   void ShellWindowActivated(apps::ShellWindow* shell_window);
   void RemoveShellWindow(apps::ShellWindow* shell_window);
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
@@ skipping 20 matching lines @@
   // window will be returned.
   apps::ShellWindow* GetShellWindowForAppAndKey(
       const std::string& app_id,
       const std::string& window_key) const;
 
   // Returns whether a ShellWindow's ID was last known to have a DevToolsAgent
   // attached to it, which should be restored during a reload of a corresponding
   // newly created |render_view_host|.
   bool HadDevToolsAttached(content::RenderViewHost* render_view_host) const;
 
-  // Returns the shell window for |window|, looking in all profiles.
+  // Returns the shell window for |window|, looking in all browser contexts.
   static apps::ShellWindow* GetShellWindowForNativeWindowAnyProfile(
       gfx::NativeWindow window);
 
-  // Returns true if the number of shell windows registered across all profiles
-  // is non-zero. |window_type_mask| is a bitwise OR filter of
+  // Returns true if the number of shell windows registered across all browser
+  // contexts is non-zero. |window_type_mask| is a bitwise OR filter of
   // ShellWindow::WindowType, or 0 for any window type.
   static bool IsShellWindowRegisteredInAnyProfile(int window_type_mask);
 
   class Factory : public BrowserContextKeyedServiceFactory {
    public:
-    static ShellWindowRegistry* GetForProfile(Profile* profile, bool create);
+    static ShellWindowRegistry* GetForBrowserContext(
+        content::BrowserContext* context, bool create);
 
     static Factory* GetInstance();
    private:
     friend struct DefaultSingletonTraits<Factory>;
 
     Factory();
     virtual ~Factory();
 
     // BrowserContextKeyedServiceFactory
     virtual BrowserContextKeyedService* BuildServiceInstanceFor(
-        content::BrowserContext* profile) const OVERRIDE;
+        content::BrowserContext* context) const OVERRIDE;
     virtual bool ServiceIsCreatedWithBrowserContext() const OVERRIDE;
     virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
     virtual content::BrowserContext* GetBrowserContextToUse(
         content::BrowserContext* context) const OVERRIDE;
   };
 
  protected:
   void OnDevToolsStateChanged(content::DevToolsAgentHost*, bool attached);
 
  private:
   // Ensures the specified |shell_window| is included in |shell_windows_|.
   // Otherwise adds |shell_window| to the back of |shell_windows_|.
   void AddShellWindowToList(apps::ShellWindow* shell_window);
 
   // Bring |shell_window| to the front of |shell_windows_|. If it is not in the
   // list, add it first.
   void BringToFront(apps::ShellWindow* shell_window);
 
-  Profile* profile_;
+  content::BrowserContext* context_;
   ShellWindowList shell_windows_;
   InspectedWindowSet inspected_windows_;
   ObserverList<Observer> observers_;
   base::Callback<void(content::DevToolsAgentHost*, bool)> devtools_callback_;
 };
 
 }  // namespace extensions
 
 #endif  // APPS_SHELL_WINDOW_REGISTRY_H_