Mac: Fix SDK 10.11 Compile errors after clang roll in r387792

chrome/browser/ui/cocoa/info_bubble_window.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/info_bubble_window.h"
 
 #include <Carbon/Carbon.h>
 
 #include "base/logging.h"
-#include "base/mac/scoped_nsobject.h"
+#import "base/mac/foundation_util.h"
+#import "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "chrome/browser/chrome_notification_types.h"
+#import "chrome/browser/ui/cocoa/base_bubble_controller.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #import "third_party/google_toolbox_for_mac/src/AppKit/GTMNSAnimation+Duration.h"
 
 namespace {
 const CGFloat kOrderInSlideOffset = 10;
 const NSTimeInterval kOrderInAnimationDuration = 0.075;
 const NSTimeInterval kOrderOutAnimationDuration = 0.15;
 // The minimum representable time interval.  This can be used as the value
@@ skipping 111 matching lines @@
     [animations setObject:alphaAnimation forKey:@"alphaValue"];
     [self setAnimations:animations];
   }
   return self;
 }
 
 - (BOOL)performKeyEquivalent:(NSEvent*)event {
   if (([event keyCode] == kVK_Escape) ||
       (([event keyCode] == kVK_ANSI_Period) &&
        (([event modifierFlags] & NSCommandKeyMask) != 0))) {
-    [[self windowController] cancel:self];
+    BaseBubbleController* bubbleController =
+        base::mac::ObjCCastStrict<BaseBubbleController>(
+            [self windowController]);
+    [bubbleController cancel:self];
     return YES;
   }
   return [super performKeyEquivalent:event];
 }
 
 // According to
 // http://www.cocoabuilder.com/archive/message/cocoa/2006/6/19/165953,
 // NSBorderlessWindowMask windows cannot become key or main. In this
 // case, this is not necessarily a desired behavior. As an example, the
 // bubble could have buttons.
@@ skipping 94 matching lines @@
 
 // Override -[NSWindow addChildWindow] to prevent ShareKit bugs propagating
 // to the browser window. See http://crbug.com/475855.
 - (void)addChildWindow:(NSWindow*)childWindow
                ordered:(NSWindowOrderingMode)orderingMode {
   [[self parentWindow] removeChildWindow:self];
   [super addChildWindow:childWindow ordered:orderingMode];
 }
 
 @end