Move PageTransition from //content/public/common to //ui/base

chrome/browser/platform_util_chromeos.cc

Index: chrome/browser/platform_util_chromeos.cc
diff --git a/chrome/browser/platform_util_chromeos.cc b/chrome/browser/platform_util_chromeos.cc
index fc1a47690c6f0ec1719e5e6201fe847b2f21b57a..aad0b73602f9396699b2ae1b17ebdf69b738a162 100644
--- a/chrome/browser/platform_util_chromeos.cc
+++ b/chrome/browser/platform_util_chromeos.cc
@@ -42,7 +42,7 @@ void OpenExternal(Profile* profile, const GURL& url) {
   //     this function directly and which would therefore break (e.g.
   //     "Browser::EmailPageLocation" (to name only one).
   // As such we should keep this code here.
-  chrome::NavigateParams params(profile, url, content::PAGE_TRANSITION_LINK);
+  chrome::NavigateParams params(profile, url, ui::PAGE_TRANSITION_LINK);
   params.disposition = NEW_FOREGROUND_TAB;
   params.host_desktop_type = chrome::HOST_DESKTOP_TYPE_ASH;