Add ManagePasswordsBubbleCocoa and unit tests.

chrome/browser/ui/cocoa/passwords/manage_passwords_bubble_cocoa.h

Index: chrome/browser/ui/cocoa/passwords/manage_passwords_bubble_cocoa.h
diff --git a/chrome/browser/ui/cocoa/passwords/manage_passwords_bubble_cocoa.h b/chrome/browser/ui/cocoa/passwords/manage_passwords_bubble_cocoa.h
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+// Copyright 2014 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.
+
+#ifndef CHROME_BROWSER_UI_COCOA_PASSWORDS_MANAGE_PASSWORDS_BUBBLE_COCOA_H_
+#define CHROME_BROWSER_UI_COCOA_PASSWORDS_MANAGE_PASSWORDS_BUBBLE_COCOA_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_nsobject.h"
+#import "chrome/browser/ui/passwords/manage_passwords_bubble.h"
+
+namespace content {
+class WebContents;
+}
+
+@class ManagePasswordsBubbleController;
+@class ManagePasswordsBubbleCocoaNotificationBridge;
+
+// Cocoa implementation of the platform-independent password bubble interface.
+class ManagePasswordsBubbleCocoa : public ManagePasswordsBubble {
+ public:
+  // Creates and shows the bubble, which owns itself. Does nothing if the bubble
+  // is already shown.
+  static void ShowBubble(content::WebContents* webContents,
+                         DisplayReason displayReason);
+
+  // Closes and deletes the bubble.
+  void Close();
+
+  // Accessor for the global bubble.
+  static ManagePasswordsBubbleCocoa* instance() { return bubble_; }
+
+ private:
+  friend class ManagePasswordsBubbleCocoaTest;
+
+  // Instance-specific logic. Clients should use the static interface.
+  ManagePasswordsBubbleCocoa(content::WebContents* webContents,
+                             DisplayReason displayReason);
+  virtual ~ManagePasswordsBubbleCocoa();
+  void Show();
+
+  // Cleans up state and deletes itself. Called when the bubble is closed.
+  void OnClose();
+
+  // Whether there is currently a close operation taking place. Prevents
+  // multiple attempts to close the window.
+  bool closing_;
+
+  // The view controller for the bubble. Weak; owns itself. Must be nilled
+  // after the bubble is closed.
+  ManagePasswordsBubbleController* controller_;
+
+  // WebContents on which the bubble should be displayed. Weak.
+  content::WebContents* webContents_;
+
+  // Listens for NSNotificationCenter notifications.
+  base::scoped_nsobject<ManagePasswordsBubbleCocoaNotificationBridge> bridge_;
+
+  // The global bubble instance. Deleted by Close().
+  static ManagePasswordsBubbleCocoa* bubble_;
+
+  DISALLOW_COPY_AND_ASSIGN(ManagePasswordsBubbleCocoa);
+};
+
+#endif  // CHROME_BROWSER_UI_COCOA_PASSWORDS_MANAGE_PASSWORDS_BUBBLE_COCOA_H_