Add window manager component.

wm/shell/content_client/shell_main_delegate.cc

Index: wm/shell/content_client/shell_main_delegate.cc
diff --git a/ash/shell/content_client/shell_main_delegate.cc b/wm/shell/content_client/shell_main_delegate.cc
similarity index 81%
copy from ash/shell/content_client/shell_main_delegate.cc
copy to wm/shell/content_client/shell_main_delegate.cc
index 343ba27f04cbfb74ff694f93d71e3dee0527053c..a5868ed05066cffee00087682c5d58c50bb75225 100644
--- a/ash/shell/content_client/shell_main_delegate.cc
+++ b/wm/shell/content_client/shell_main_delegate.cc
@@ -2,17 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ash/shell/content_client/shell_main_delegate.h"
+#include "wm/shell/content_client/shell_main_delegate.h"
+
+#include <string>
 
-#include "ash/shell/content_client/shell_content_browser_client.h"
 #include "base/command_line.h"
-#include "base/file_path.h"
-#include "base/path_service.h"
 #include "content/public/common/content_switches.h"
 #include "ui/base/resource/resource_bundle.h"
-#include "ui/base/ui_base_paths.h"
+#include "wm/shell/content_client/shell_content_browser_client.h"
 
-namespace ash {
+namespace wm {
 namespace shell {
 
 ShellMainDelegate::ShellMainDelegate() {
@@ -45,4 +44,4 @@ void ShellMainDelegate::InitializeResourceBundle() {
 }
 
 }  // namespace shell
-}  // namespace ash
+}  // namespace wm