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

chrome/browser/safe_browsing/safe_browsing_blocking_page.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.
 //
 // Implementation of the SafeBrowsingBlockingPage class.
 
 #include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
 
 #include <string>
 
@@ skipping 417 matching lines @@
     SafeBrowsingService::UrlCheckResult threat_type =
         unsafe_resources_[0].threat_type;
     if (threat_type == SafeBrowsingService::URL_MALWARE) {
       url = google_util::AppendGoogleLocaleParam(GURL(kLearnMoreMalwareUrl));
     } else if (threat_type == SafeBrowsingService::URL_PHISHING ||
                threat_type == SafeBrowsingService::CLIENT_SIDE_PHISHING_URL) {
       url = google_util::AppendGoogleLocaleParam(GURL(kLearnMorePhishingUrl));
     } else {
       NOTREACHED();
     }
-    tab()->OpenURL(url, GURL(), CURRENT_TAB, PageTransition::LINK);
+    tab()->OpenURL(url, GURL(), CURRENT_TAB, content::PAGE_TRANSITION_LINK);
     return;
   }
 
   if (command == kShowPrivacyCommand) {
     // User pressed "Safe Browsing privacy policy".
     GURL url(kSbPrivacyPolicyUrl);
-    tab()->OpenURL(url, GURL(), CURRENT_TAB, PageTransition::LINK);
+    tab()->OpenURL(url, GURL(), CURRENT_TAB, content::PAGE_TRANSITION_LINK);
     return;
   }
 
   if (command == kProceedCommand) {
     Proceed();
     // We are deleted after this.
     return;
   }
 
   if (command == kTakeMeBackCommand) {
@@ skipping 27 matching lines @@
     // It is not OK to navigate in the context of an interstitial page.
     SafeBrowsingService::UrlCheckResult threat_type =
         unsafe_resources_[element_index].threat_type;
     DCHECK(threat_type == SafeBrowsingService::URL_PHISHING ||
            threat_type == SafeBrowsingService::CLIENT_SIDE_PHISHING_URL);
     GURL report_url =
         safe_browsing_util::GeneratePhishingReportUrl(
             kSbReportPhishingErrorUrl,
             bad_url_spec,
             threat_type == SafeBrowsingService::CLIENT_SIDE_PHISHING_URL);
-    tab()->OpenURL(report_url, GURL(), CURRENT_TAB, PageTransition::LINK);
+    tab()->OpenURL(
+        report_url, GURL(), CURRENT_TAB, content::PAGE_TRANSITION_LINK);
     return;
   }
 
   if (command == kShowDiagnosticCommand) {
     // We're going to take the user to Google's SafeBrowsing diagnostic page.
     std::string diagnostic =
         base::StringPrintf(kSbDiagnosticUrl,
             net::EscapeQueryParamValue(bad_url_spec, true).c_str());
     GURL diagnostic_url(diagnostic);
     diagnostic_url = google_util::AppendGoogleLocaleParam(diagnostic_url);
     DCHECK(unsafe_resources_[element_index].threat_type ==
            SafeBrowsingService::URL_MALWARE);
-    tab()->OpenURL(diagnostic_url, GURL(), CURRENT_TAB, PageTransition::LINK);
+    tab()->OpenURL(
+        diagnostic_url, GURL(), CURRENT_TAB, content::PAGE_TRANSITION_LINK);
     return;
   }
 
   NOTREACHED() << "Unexpected command: " << command;
 }
 
 void SafeBrowsingBlockingPage::SetReportingPreference(bool report) {
   Profile* profile = Profile::FromBrowserContext(tab()->browser_context());
   PrefService* pref = profile->GetPrefs();
   pref->SetBoolean(prefs::kSafeBrowsingReportingEnabled, report);
@@ skipping 186 matching lines @@
   // Client-side phishing detection interstitials never block the main frame
   // load, since they happen after the page is finished loading.
   if (unsafe_resources[0].threat_type ==
       SafeBrowsingService::CLIENT_SIDE_PHISHING_URL) {
     return false;
   }
 
   // Otherwise, check the threat type.
   return unsafe_resources.size() == 1 && !unsafe_resources[0].is_subresource;
 }