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

chrome/browser/autocomplete/history_url_provider_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 "chrome/browser/autocomplete/history_url_provider.h"
 
 #include <algorithm>
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
@@ skipping 358 matching lines @@
 
   // Create a B->C->A redirect chain, but set the visit counts such that they
   // will appear in A,B,C order in the results. The autocomplete query will
   // search for the most recent visit when looking for redirects, so this will
   // be found even though the previous visits had no redirects.
   history::RedirectList redirects_to_a;
   redirects_to_a.push_back(GURL(test_cases[1].url));
   redirects_to_a.push_back(GURL(test_cases[2].url));
   redirects_to_a.push_back(GURL(test_cases[0].url));
   history_service_->AddPage(GURL(test_cases[0].url), NULL, 0, GURL(),
-      PageTransition::TYPED, redirects_to_a, history::SOURCE_BROWSED, true);
+      content::PAGE_TRANSITION_TYPED, redirects_to_a, history::SOURCE_BROWSED,
+      true);
 
   // Because all the results are part of a redirect chain with other results,
   // all but the first one (A) should be culled. We should get the default
   // "what you typed" result, plus this one.
   const string16 typing(ASCIIToUTF16("http://redirects/"));
   const std::string expected_results[] = {
     UTF16ToUTF8(typing),
     test_cases[0].url,
   };
   RunTest(typing, string16(), true, expected_results,
@@ skipping 246 matching lines @@
     "\\@st"
   };
   for (size_t i = 0; i < arraysize(test_cases); ++i) {
     AutocompleteInput input(ASCIIToUTF16(test_cases[i]), string16(), false,
                             false, true, AutocompleteInput::ALL_MATCHES);
     autocomplete_->Start(input, false);
     if (!autocomplete_->done())
       MessageLoop::current()->Run();
   }
 }