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

chrome/browser/ui/cocoa/applescript/tab_applescript.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/applescript/tab_applescript.h"
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #import "base/memory/scoped_nsobject.h"
 #include "base/sys_string_conversions.h"
@@ skipping 101 matching lines @@
   }
 
   NavigationEntry* entry = tabContents_->controller().GetActiveEntry();
   if (!entry)
     return;
 
   const GURL& previousURL = entry->virtual_url();
   tabContents_->tab_contents()->OpenURL(url,
                                         previousURL,
                                         CURRENT_TAB,
-                                        PageTransition::TYPED);
+                                        content::PAGE_TRANSITION_TYPED);
 }
 
 - (NSString*)title {
   NavigationEntry* entry = tabContents_->controller().GetActiveEntry();
   if (!entry)
     return nil;
 
   std::wstring title;
   if (entry != NULL) {
     title = UTF16ToWideHack(entry->title());
@@ skipping 148 matching lines @@
 }
 
 - (void)handlesViewSourceScriptCommand:(NSScriptCommand*)command {
   NavigationEntry* entry = tabContents_->controller().GetLastCommittedEntry();
   if (entry) {
     tabContents_->tab_contents()->OpenURL(
         GURL(chrome::kViewSourceScheme + std::string(":") +
              entry->url().spec()),
         GURL(),
         NEW_FOREGROUND_TAB,
-        PageTransition::LINK);
+        content::PAGE_TRANSITION_LINK);
   }
 }
 
 - (id)handlesExecuteJavascriptScriptCommand:(NSScriptCommand*)command {
   RenderViewHost* view = tabContents_->render_view_host();
   if (!view) {
     NOTREACHED();
     return nil;
   }
 
   string16 script = base::SysNSStringToUTF16(
       [[command evaluatedArguments] objectForKey:@"javascript"]);
   view->ExecuteJavascriptInWebFrame(string16(), script);
 
   // TODO(Shreyas): Figure out a way to get the response back.
   return nil;
 }
 
 @end