chrome/browser/ui: Put browser_dialogs.h into chrome namespace.

chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc

Index: chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
diff --git a/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc b/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
index 422e2d02d5b1ad76082f16ca5aaf762cca733345..6a2b624d4022575f9756dabb9219b35921053a1f 100644
--- a/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
+++ b/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
@@ -32,7 +32,7 @@
 using content::WebContents;
 using content::WebUIMessageHandler;
 
-namespace browser {
+namespace chrome {
 
 // Declared in browser_dialogs.h so others don't have to depend on our header.
 void ShowTabModalConfirmDialog(TabModalConfirmDialogDelegate* delegate,
@@ -40,7 +40,7 @@ void ShowTabModalConfirmDialog(TabModalConfirmDialogDelegate* delegate,
   new TabModalConfirmDialogWebUI(delegate, tab_contents);
 }
 
-}  // namespace browser
+}  // namespace chrome
 
 const int kDialogWidth = 400;
 const int kDialogHeight = 120;