Move ExtensionWarningService and ExtensionsWarningSet to extensions.

chrome/common/extensions/chrome_extensions_client.cc

Index: chrome/common/extensions/chrome_extensions_client.cc
diff --git a/chrome/common/extensions/chrome_extensions_client.cc b/chrome/common/extensions/chrome_extensions_client.cc
index 80befd80209a5145a68e79fa4424833ffcbaf740..61169b03d60cafa1f1abb28f399ac8dbadc750ee 100644
--- a/chrome/common/extensions/chrome_extensions_client.cc
+++ b/chrome/common/extensions/chrome_extensions_client.cc
@@ -100,6 +100,10 @@ ChromeExtensionsClient::GetPermissionMessageProvider() const {
   return permission_message_provider_;
 }
 
+const std::string ChromeExtensionsClient::GetProductName() {
+  return "Chrome";

[James Cook, 2014/08/25 20:58:11]

I don't think you want to do this. You probably want to look up IDS_PRODUCT_NAME
or something similar. For example, the open-source build should have the product
name "Chromium".

[Xi Han, 2014/08/26 18:21:40]

Done.

+}
+
 scoped_ptr<FeatureProvider> ChromeExtensionsClient::CreateFeatureProvider(
     const std::string& name) const {
   scoped_ptr<FeatureProvider> provider;