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

chrome/browser/ui/cocoa/toolbar/toolbar_controller.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/toolbar/toolbar_controller.h"
 
 #include <algorithm>
 
 #include "base/mac/mac_util.h"
 #include "base/memory/singleton.h"
@@ skipping 765 matching lines @@
   // Get the first URL and fix it up.
   GURL url(URLFixerUpper::FixupURL(
       base::SysNSStringToUTF8([urls objectAtIndex:0]), std::string()));
 
   if (url.SchemeIs(chrome::kJavaScriptScheme)) {
     browser_->window()->GetLocationBar()->location_entry()->SetUserText(
         OmniboxView::StripJavascriptSchemas(UTF8ToUTF16(url.spec())));
     return;
   }
   browser_->GetSelectedTabContents()->OpenURL(url, GURL(), CURRENT_TAB,
-                                              PageTransition::TYPED);
+                                              content::PAGE_TRANSITION_TYPED);
 }
 
 // (URLDropTargetController protocol)
 - (void)dropText:(NSString*)text inView:(NSView*)view at:(NSPoint)point {
   // TODO(viettrungluu): This code is more or less copied from the code in
   // |TabStripController|. I'll refactor this soon to make it common and expand
   // its capabilities (e.g., allow text DnD).
 
   // If the input is plain text, classify the input and make the URL.
   AutocompleteMatch match;
   browser_->profile()->GetAutocompleteClassifier()->Classify(
       base::SysNSStringToUTF16(text), string16(), false, false, &match, NULL);
   GURL url(match.destination_url);
 
   browser_->GetSelectedTabContents()->OpenURL(url, GURL(), CURRENT_TAB,
-                                              PageTransition::TYPED);
+                                              content::PAGE_TRANSITION_TYPED);
 }
 
 // (URLDropTargetController protocol)
 - (void)indicateDropURLsInView:(NSView*)view at:(NSPoint)point {
   // Do nothing.
 }
 
 // (URLDropTargetController protocol)
 - (void)hideDropURLsIndicatorInView:(NSView*)view {
   // Do nothing.
 }
 
 // (URLDropTargetController protocol)
 - (BOOL)isUnsupportedDropData:(id<NSDraggingInfo>)info {
   return drag_util::IsUnsupportedDropData(profile_, info);
 }
 
 @end