[DevTools] Add toolbox web contents to show in undocked mode.

chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm

Index: chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
diff --git a/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm b/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
index b49b82d7545ae350c389253f92dcb4791a7ac561..16bcd0371c39029781b27b28206261f786408464 100644
--- a/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
+++ b/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
@@ -272,11 +272,10 @@ class FullscreenObserver : public WebContentsObserver {
       rvh->Blur();
       return;
     }
-    DevToolsWindow* devtoolsWindow =
-        DevToolsWindow::GetDockedInstanceForInspectedTab([self webContents]);
-    if (devtoolsWindow) {
-      content::RenderViewHost* devtoolsView =
-          devtoolsWindow->web_contents()->GetRenderViewHost();
+    WebContents* devtools = DevToolsWindow::GetWebContentsToShowForInspectedTab(
+        [self webContents], NULL);
+    if (devtools) {
+      content::RenderViewHost* devtoolsView = devtools->GetRenderViewHost();
       if (devtoolsView && devtoolsView->GetView() &&
           devtoolsView->GetView()->HasFocus()) {
         devtoolsView->Blur();