Move PageTransition into content namespace. While I'm touching all these files, I've also updated...

content/browser/tab_contents/tab_contents_observer.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_OBSERVER_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_OBSERVER_H_
 
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/common/content_export.h"
-#include "content/common/page_transition_types.h"
+#include "content/public/common/page_transition_types.h"
 #include "ipc/ipc_channel.h"
 #include "webkit/glue/window_open_disposition.h"
 
 class RenderViewHost;
 struct ViewHostMsg_FrameNavigate_Params;
 
 // An observer API implemented by classes which are interested in various page
 // load events from TabContents.  They also get a chance to filter IPC messages.
 class CONTENT_EXPORT TabContentsObserver : public IPC::Channel::Listener,
                                            public IPC::Message::Sender {
@@ skipping 15 matching lines @@
       bool is_main_frame,
       const GURL& validated_url,
       bool is_error_page,
       RenderViewHost* render_view_host);
   virtual void ProvisionalChangeToMainFrameUrl(const GURL& url,
                                                const GURL& opener_url);
   virtual void DidCommitProvisionalLoadForFrame(
       int64 frame_id,
       bool is_main_frame,
       const GURL& url,
-      PageTransition::Type transition_type);
+      content::PageTransition transition_type);
   virtual void DidFailProvisionalLoad(int64 frame_id,
                                       bool is_main_frame,
                                       const GURL& validated_url,
                                       int error_code,
                                       const string16& error_description);
   virtual void DocumentLoadedInFrame(int64 frame_id);
   virtual void DidFinishLoad(int64 frame_id);
   virtual void DidGetUserGesture();
   virtual void DidGetIgnoredUIEvent();
   virtual void DidBecomeSelected();
 
   virtual void DidStartLoading();
   virtual void DidStopLoading();
   virtual void RenderViewGone();
   virtual void StopNavigation();
 
   virtual void DidOpenURL(const GURL& url,
                           const GURL& referrer,
                           WindowOpenDisposition disposition,
-                          PageTransition::Type transition);
+                          content::PageTransition transition);
 
   virtual void DidOpenRequestedURL(TabContents* new_contents,
                                    const GURL& url,
                                    const GURL& referrer,
                                    WindowOpenDisposition disposition,
-                                   PageTransition::Type transition,
+                                   content::PageTransition transition,
                                    int64 source_frame_id);
 
   virtual void AppCacheAccessed(const GURL& manifest_url,
                                 bool blocked_by_policy);
 #if 0
   // For unifying with delegate...
 
   // Notifies the delegate that this contents is starting or is done loading
   // some resource. The delegate should use this notification to represent
   // loading feedback. See TabContents::IsLoading()
@@ skipping 44 matching lines @@
 
   TabContents* tab_contents_;
 
   // The routing ID of the associated TabContents.
   int routing_id_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsObserver);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_OBSERVER_H_