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

content/public/common/page_transition_types.cc

Index: content/public/common/page_transition_types.cc
===================================================================
--- content/public/common/page_transition_types.cc	(revision 105162)
+++ content/public/common/page_transition_types.cc	(working copy)
@@ -2,35 +2,61 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/common/page_transition_types.h"
+#include "content/public/common/page_transition_types.h"
 
 #include "base/logging.h"
 
-// static
-PageTransition::Type PageTransition::FromInt(int32 type) {
-  if (!ValidType(type)) {
+namespace content {
+
+PageTransition PageTransitionStripQualifier(PageTransition type) {
+  return static_cast<PageTransition>(type & ~PAGE_TRANSITION_QUALIFIER_MASK);
+}
+
+bool PageTransitionIsValidType(int32 type) {
+  PageTransition t = PageTransitionStripQualifier(
+      static_cast<PageTransition>(type));
+  return (t <= PAGE_TRANSITION_LAST_CORE);
+}
+
+PageTransition PageTransitionFromInt(int32 type) {
+  if (!PageTransitionIsValidType(type)) {
     NOTREACHED() << "Invalid transition type " << type;
 
     // Return a safe default so we don't have corrupt data in release mode.
-    return LINK;
+    return PAGE_TRANSITION_LINK;
   }
-  return static_cast<Type>(type);
+  return static_cast<PageTransition>(type);
 }
 
-// static
-const char* PageTransition::CoreTransitionString(Type type) {
-  switch (type & PageTransition::CORE_MASK) {
-    case 0: return "link";
-    case 1: return "typed";
-    case 2: return "auto_bookmark";
-    case 3: return "auto_subframe";
-    case 4: return "manual_subframe";
-    case 5: return "generated";
-    case 6: return "start_page";
-    case 7: return "form_submit";
-    case 8: return "reload";
-    case 9: return "keyword";
-    case 10: return "keyword_generated";
+bool PageTransitionIsMainFrame(PageTransition type) {
+  int32 t = PageTransitionStripQualifier(type);
+  return (t != PAGE_TRANSITION_AUTO_SUBFRAME &&
+          t != PAGE_TRANSITION_MANUAL_SUBFRAME);
+}
+
+bool PageTransitionIsRedirect(PageTransition type) {
+  return (type & PAGE_TRANSITION_IS_REDIRECT_MASK) != 0;
+}
+
+int32 PageTransitionGetQualifier(PageTransition type) {
+  return type & PAGE_TRANSITION_QUALIFIER_MASK;
+}
+
+const char* PageTransitionGetCoreTransitionString(PageTransition type) {
+  switch (type & PAGE_TRANSITION_CORE_MASK) {
+    case PAGE_TRANSITION_LINK: return "link";
+    case PAGE_TRANSITION_TYPED: return "typed";
+    case PAGE_TRANSITION_AUTO_BOOKMARK: return "auto_bookmark";
+    case PAGE_TRANSITION_AUTO_SUBFRAME: return "auto_subframe";
+    case PAGE_TRANSITION_MANUAL_SUBFRAME: return "manual_subframe";
+    case PAGE_TRANSITION_GENERATED: return "generated";
+    case PAGE_TRANSITION_START_PAGE: return "start_page";
+    case PAGE_TRANSITION_FORM_SUBMIT: return "form_submit";
+    case PAGE_TRANSITION_RELOAD: return "reload";
+    case PAGE_TRANSITION_KEYWORD: return "keyword";
+    case PAGE_TRANSITION_KEYWORD_GENERATED: return "keyword_generated";
   }
   return NULL;
 }
+
+}  // namespace content