Move apps/shell to extensions/shell.

extensions/shell/browser/api/shell/shell_api.h

Index: extensions/shell/browser/api/shell/shell_api.h
diff --git a/apps/shell/browser/api/shell/shell_api.h b/extensions/shell/browser/api/shell/shell_api.h
similarity index 79%
rename from apps/shell/browser/api/shell/shell_api.h
rename to extensions/shell/browser/api/shell/shell_api.h
index 00129878d8491155b319bc1f71e01db7c6a45395..fab93801a8ae8f8997707ba5088802c0ba469961 100644
--- a/apps/shell/browser/api/shell/shell_api.h
+++ b/extensions/shell/browser/api/shell/shell_api.h
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef APPS_SHELL_BROWSER_API_SHELL_SHELL_API_H_
-#define APPS_SHELL_BROWSER_API_SHELL_SHELL_API_H_
+#ifndef EXTENSIONS_SHELL_BROWSER_API_SHELL_SHELL_API_H_
+#define EXTENSIONS_SHELL_BROWSER_API_SHELL_SHELL_API_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "extensions/browser/extension_function.h"
 #include "extensions/browser/extension_function_histogram_value.h"
 
-namespace apps {
+namespace extensions {
 
 // Implementation of the chrome.shell.createWindow() function for app_shell.
 // Opens a fullscreen window and invokes the window callback to allow access to
@@ -28,6 +28,6 @@ class ShellCreateWindowFunction : public UIThreadExtensionFunction {
   DISALLOW_COPY_AND_ASSIGN(ShellCreateWindowFunction);
 };
 
-}  // namespace apps
+}  // namespace extensions
 
-#endif  // APPS_SHELL_BROWSER_API_SHELL_SHELL_API_H_
+#endif  // EXTENSIONS_SHELL_BROWSER_API_SHELL_SHELL_API_H_