Introduce ui/wm/ directory.

ui/views/examples/content_client/examples_browser_main_parts.h

Index: ui/views/examples/content_client/examples_browser_main_parts.h
diff --git a/ui/views/examples/content_client/examples_browser_main_parts.h b/ui/views/examples/content_client/examples_browser_main_parts.h
index f272ff8963e7750beec641262424bdec995237ee..f348999fe79a9b5e585b3284504568283afbba8a 100644
--- a/ui/views/examples/content_client/examples_browser_main_parts.h
+++ b/ui/views/examples/content_client/examples_browser_main_parts.h
@@ -14,7 +14,7 @@ class ShellBrowserContext;
 struct MainFunctionParams;
 }
 
-namespace shell {
+namespace wm {
 class MinimalShell;
 }
 
@@ -45,7 +45,7 @@ class ExamplesBrowserMainParts : public content::BrowserMainParts {
 
 #if defined(OS_CHROMEOS)
   // Enable a minimal set of views::corewm to be initialized.
-  scoped_ptr<shell::MinimalShell> minimal_shell_;
+  scoped_ptr<wm::MinimalShell> minimal_shell_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ExamplesBrowserMainParts);