Add missing (and remove superfluous) 'explicit' from constructors.

chrome/browser/ui/cocoa/content_settings/collected_cookies_mac.h

 // 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 <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/browsing_data/cookies_tree_model.h"
 #include "chrome/browser/ui/cocoa/constrained_window/constrained_window_mac.h"
 #import "chrome/browser/ui/cocoa/content_settings/cookie_tree_node.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 @class CollectedCookiesWindowController;
 @class CookieDetailsViewController;
 @class VerticalGradientView;
 
 namespace content {
 class WebContents;
 }
 
 // The constrained window delegate reponsible for managing the collected
 // cookies dialog.
 class CollectedCookiesMac : public ConstrainedWindowMacDelegate,
                             public content::NotificationObserver {
  public:
-  CollectedCookiesMac(content::WebContents* web_contents);
+  explicit CollectedCookiesMac(content::WebContents* web_contents);
   virtual ~CollectedCookiesMac();
 
   void PerformClose();
 
   // ConstrainedWindowMacDelegate implementation.
   virtual void OnConstrainedWindowClosed(
       ConstrainedWindowMac* window) OVERRIDE;
 
   CollectedCookiesWindowController* sheet_controller() const {
     return sheet_controller_.get();
@@ skipping 94 matching lines @@
 - (CocoaCookieTreeNode*)cocoaBlockedTreeModel;
 - (void)setCocoaAllowedTreeModel:(CocoaCookieTreeNode*)model;
 - (void)setCocoaBlockedTreeModel:(CocoaCookieTreeNode*)model;
 
 // Returns the |allowedTreeModel_| and |blockedTreeModel_|.
 - (CookiesTreeModel*)allowedTreeModel;
 - (CookiesTreeModel*)blockedTreeModel;
 
 - (void)loadTreeModelFromWebContents;
 @end