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

chrome/browser/bookmarks/bookmark_model_unittest.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 <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/base_paths.h"
@@ skipping 955 matching lines @@
 TEST_F(BookmarkModelTestWithProfile2, RemoveNotification) {
   profile_->CreateHistoryService(false, false);
   profile_->CreateBookmarkModel(true);
   BlockTillBookmarkModelLoaded();
 
   // Add a URL.
   GURL url("http://www.google.com");
   bookmark_utils::AddIfNotBookmarked(bb_model_, url, string16());
 
   profile_->GetHistoryService(Profile::EXPLICIT_ACCESS)->AddPage(
-      url, NULL, 1, GURL(), PageTransition::TYPED,
+      url, NULL, 1, GURL(), content::PAGE_TRANSITION_TYPED,
       history::RedirectList(), history::SOURCE_BROWSED, false);
 
   // This won't actually delete the URL, rather it'll empty out the visits.
   // This triggers blocking on the BookmarkModel.
   profile_->GetHistoryService(Profile::EXPLICIT_ACCESS)->DeleteURL(url);
 }
 
 TEST_F(BookmarkModelTest, Sort) {
   // Populate the bookmark bar node with nodes for 'B', 'a', 'd' and 'C'.
   // 'C' and 'a' are folders.
@@ skipping 48 matching lines @@
 TEST_F(BookmarkModelTest, SyncNodeVisibileWithChildren) {
   const BookmarkNode* root = model_.synced_node();
   const string16 title(ASCIIToUTF16("foo"));
   const GURL url("http://foo.com");
 
   model_.AddURL(root, 0, title, url);
   EXPECT_TRUE(model_.synced_node()->IsVisible());
 }
 
 }  // namespace