Move ShellWindow into apps component.

chrome/browser/extensions/api/identity/web_auth_flow.h

Index: chrome/browser/extensions/api/identity/web_auth_flow.h
diff --git a/chrome/browser/extensions/api/identity/web_auth_flow.h b/chrome/browser/extensions/api/identity/web_auth_flow.h
index df6c0f9fd81d5d56eebbc54d1cea1320dca2b77f..cbe42c665b14e649ecc7cb41187c0f7a1d0fea9d 100644
--- a/chrome/browser/extensions/api/identity/web_auth_flow.h
+++ b/chrome/browser/extensions/api/identity/web_auth_flow.h
@@ -92,9 +92,10 @@ class WebAuthFlow : public content::NotificationObserver,
   friend class ::WebAuthFlowTest;
 
   // ShellWindowRegistry::Observer implementation.
-  virtual void OnShellWindowAdded(ShellWindow* shell_window) OVERRIDE;
-  virtual void OnShellWindowIconChanged(ShellWindow* shell_window) OVERRIDE {}
-  virtual void OnShellWindowRemoved(ShellWindow* shell_window) OVERRIDE;
+  virtual void OnShellWindowAdded(apps::ShellWindow* shell_window) OVERRIDE;
+  virtual void OnShellWindowIconChanged(apps::ShellWindow* shell_window)
+      OVERRIDE;
+  virtual void OnShellWindowRemoved(apps::ShellWindow* shell_window) OVERRIDE;
 
   // NotificationObserver implementation.
   virtual void Observe(int type,
@@ -132,7 +133,7 @@ class WebAuthFlow : public content::NotificationObserver,
   GURL provider_url_;
   Mode mode_;
 
-  ShellWindow* shell_window_;
+  apps::ShellWindow* shell_window_;
   std::string shell_window_key_;
   bool embedded_window_created_;