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

chrome/browser/autocomplete/autocomplete_match.cc

 // 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.
 
 #include "base/logging.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
 #include "grit/theme_resources.h"
 
 // AutocompleteMatch ----------------------------------------------------------
 
 AutocompleteMatch::AutocompleteMatch()
     : provider(NULL),
       relevance(0),
       deletable(false),
       inline_autocomplete_offset(string16::npos),
-      transition(PageTransition::GENERATED),
+      transition(content::PAGE_TRANSITION_GENERATED),
       is_history_what_you_typed_match(false),
       type(SEARCH_WHAT_YOU_TYPED),
       template_url(NULL),
       starred(false),
       from_previous(false) {
 }
 
 AutocompleteMatch::AutocompleteMatch(AutocompleteProvider* provider,
                                      int relevance,
                                      bool deletable,
                                      Type type)
     : provider(provider),
       relevance(relevance),
       deletable(deletable),
       inline_autocomplete_offset(string16::npos),
-      transition(PageTransition::TYPED),
+      transition(content::PAGE_TRANSITION_TYPED),
       is_history_what_you_typed_match(false),
       type(type),
       template_url(NULL),
       starred(false),
       from_previous(false) {
 }
 
 AutocompleteMatch::~AutocompleteMatch() {
 }
 
@@ skipping 136 matching lines @@
   // The classifications should always be sorted.
   size_t last_offset = classifications[0].offset;
   for (ACMatchClassifications::const_iterator i(classifications.begin() + 1);
        i != classifications.end(); ++i) {
     DCHECK(i->offset > last_offset) << "Classification unsorted";
     DCHECK(i->offset < text.length()) << "Classification out of bounds";
     last_offset = i->offset;
   }
 }
 #endif