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..d29b3531fd8df8950cbb43ce6b51d25de5f13508 100644
--- a/chrome/common/extensions/chrome_extensions_client.cc
+++ b/chrome/common/extensions/chrome_extensions_client.cc
@@ -11,6 +11,7 @@
 #include "chrome/common/extensions/features/chrome_channel_feature_filter.h"
 #include "chrome/common/extensions/features/feature_channel.h"
 #include "chrome/common/url_constants.h"
+#include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/common_resources.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/common/url_constants.h"
@@ -100,6 +101,10 @@ ChromeExtensionsClient::GetPermissionMessageProvider() const {
   return permission_message_provider_;
 }
 
+const std::string ChromeExtensionsClient::GetProductName() {
+  return l10n_util::GetStringUTF8(IDS_PRODUCT_NAME);
+}
+
 scoped_ptr<FeatureProvider> ChromeExtensionsClient::CreateFeatureProvider(
     const std::string& name) const {
   scoped_ptr<FeatureProvider> provider;