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

chrome/browser/ui/find_bar/find_bar_controller.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/ui/find_bar/find_bar_controller.h"
 
 #include <algorithm>
 
 #include "base/i18n/rtl.h"
 #include "build/build_config.h"
@@ skipping 112 matching lines @@
         if (last_search.find(current_search) != 0)
           find_bar_->AudibleAlert();
       }
     }
   } else if (type == content::NOTIFICATION_NAV_ENTRY_COMMITTED) {
     NavigationController* source_controller =
         Source<NavigationController>(source).ptr();
     if (source_controller == &tab_contents_->controller()) {
       content::LoadCommittedDetails* commit_details =
           Details<content::LoadCommittedDetails>(details).ptr();
-      PageTransition::Type transition_type =
+      content::PageTransition transition_type =
           commit_details->entry->transition_type();
       // We hide the FindInPage window when the user navigates away, except on
       // reload.
       if (find_bar_->IsFindBarVisible()) {
-        if (PageTransition::StripQualifier(transition_type) !=
-            PageTransition::RELOAD) {
+        if (content::PageTransitionStripQualifier(transition_type) !=
+            content::PAGE_TRANSITION_RELOAD) {
           EndFindSession(kKeepSelection);
         } else {
           // On Reload we want to make sure FindNext is converted to a full Find
           // to make sure highlights for inactive matches are repainted.
           find_tab_helper->set_find_op_aborted(true);
         }
       }
     }
   }
 }
@@ skipping 79 matching lines @@
   // shown it is showing the right state for this tab. We update the find text
   // _first_ since the FindBarView checks its emptiness to see if it should
   // clear the result count display when there's nothing in the box.
   find_bar_->SetFindText(find_string);
 #else
   // Having a per-tab find_string is not compatible with OS X's find pasteboard,
   // so we always have the same find text in all find bars. This is done through
   // the find pasteboard mechanism, so don't set the text here.
 #endif
 }