Integrate BlacklistManager with Profile.

chrome/browser/extensions/extensions_service.cc

Index: chrome/browser/extensions/extensions_service.cc
diff --git a/chrome/browser/extensions/extensions_service.cc b/chrome/browser/extensions/extensions_service.cc
index b185150b2aed880ef7566beafd98fd5c3996e37f..2772660e2cbf095c575f3d2652b0f0b5c2490096 100644
--- a/chrome/browser/extensions/extensions_service.cc
+++ b/chrome/browser/extensions/extensions_service.cc
@@ -750,6 +750,10 @@ void ExtensionsService::ReportExtensionLoadError(
   ExtensionErrorReporter::GetInstance()->ReportError(message, be_noisy);
 }
 
+bool ExtensionsService::AreBlacklistPathsReady() const {
+  return ready_;
+}
+
 std::vector<FilePath> ExtensionsService::GetPersistentBlacklistPaths() {
   DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));