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

chrome/browser/sync/glue/typed_url_change_processor.cc

Index: chrome/browser/sync/glue/typed_url_change_processor.cc
===================================================================
--- chrome/browser/sync/glue/typed_url_change_processor.cc	(revision 105162)
+++ chrome/browser/sync/glue/typed_url_change_processor.cc	(working copy)
@@ -170,8 +170,8 @@
 bool TypedUrlChangeProcessor::ShouldSyncVisit(
     history::URLVisitedDetails* details) {
   int typed_count = details->row.typed_count();
-  PageTransition::Type transition = static_cast<PageTransition::Type>(
-      details->transition & PageTransition::CORE_MASK);
+  content::PageTransition transition = static_cast<content::PageTransition>(
+      details->transition & content::PAGE_TRANSITION_CORE_MASK);
 
   // Just use an ad-hoc criteria to determine whether to ignore this
   // notification. For most users, the distribution of visits is roughly a bell
@@ -180,7 +180,7 @@
   // suggestions. But there are relatively few URLs with > 10 visits, and those
   // tend to be more broadly distributed such that there's no need to sync up
   // every visit to preserve their relative ordering.
-  return (transition == PageTransition::TYPED &&
+  return (transition == content::PAGE_TRANSITION_TYPED &&
           (typed_count < kTypedUrlVisitThrottleThreshold ||
            (typed_count % kTypedUrlVisitThrottleMultiple) == 0));
 }
@@ -251,7 +251,7 @@
         DCHECK(c == 0 || typed_url.visits(c) > typed_url.visits(c - 1));
         added_visits.push_back(history::VisitInfo(
             base::Time::FromInternalValue(typed_url.visits(c)),
-            typed_url.visit_transitions(c)));
+            content::PageTransitionFromInt(typed_url.visit_transitions(c))));
       }
 
       pending_new_visits_.push_back(