Add context to gfx::Screen calls in support of simultaneous desktop+ash

chrome/browser/ui/ash/chrome_shell_delegate.cc

Index: chrome/browser/ui/ash/chrome_shell_delegate.cc
diff --git a/chrome/browser/ui/ash/chrome_shell_delegate.cc b/chrome/browser/ui/ash/chrome_shell_delegate.cc
index 2dc424aaa87cf4ad07a0fd5d6ad0729ec3222f59..afdcee0cedcbf34e5593a5e5b2a79d7ba0d0bf2a 100644
--- a/chrome/browser/ui/ash/chrome_shell_delegate.cc
+++ b/chrome/browser/ui/ash/chrome_shell_delegate.cc
@@ -283,9 +283,9 @@ void ChromeShellDelegate::ShowKeyboardOverlay() {
   // TODO(mazda): Move the show logic to ash (http://crbug.com/124222).
   Profile* profile = ProfileManager::GetDefaultProfileOrOffTheRecord();
   std::string url(chrome::kChromeUIKeyboardOverlayURL);
-  KeyboardOverlayView::ShowDialog(profile,
-                                  new ChromeWebContentsHandler,
-                                  GURL(url));
+  ash::KeyboardOverlayView::ShowDialog(profile,
+                                       new ChromeWebContentsHandler,
+                                       GURL(url));
 #endif
 }