Move apps/shell to extensions/shell.

extensions/shell/browser/shell_browser_main_delegate.h

Index: extensions/shell/browser/shell_browser_main_delegate.h
diff --git a/apps/shell/browser/shell_browser_main_delegate.h b/extensions/shell/browser/shell_browser_main_delegate.h
similarity index 79%
rename from apps/shell/browser/shell_browser_main_delegate.h
rename to extensions/shell/browser/shell_browser_main_delegate.h
index 8fc2934127d6a901b1dc90b4597b388aa0b30601..3dbbbab2cfaff61be4040e164660ee20af019f00 100644
--- a/apps/shell/browser/shell_browser_main_delegate.h
+++ b/extensions/shell/browser/shell_browser_main_delegate.h
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef APPS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
-#define APPS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
+#ifndef EXTENSIONS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
+#define EXTENSIONS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
 
 namespace content {
 class BrowserContext;
 }
 
-namespace apps {
+namespace extensions {
 
 class ShellDesktopController;
 
@@ -31,6 +31,6 @@ class ShellBrowserMainDelegate {
   virtual ShellDesktopController* CreateDesktopController() = 0;
 };
 
-}  // namespace apps
+}  // namespace extensions
 
-#endif  // APPS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
+#endif  // EXTENSIONS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_