Trace revision and v8 version for IterationInfo

content/public/common/content_client.cc

Index: content/public/common/content_client.cc
diff --git a/content/public/common/content_client.cc b/content/public/common/content_client.cc
index 4deed2d832cb07efa90df369c513cb16386df55a..df39f16577c9a086478821d97ec0ececf3cc8bb7 100644
--- a/content/public/common/content_client.cc
+++ b/content/public/common/content_client.cc
@@ -78,6 +78,14 @@ std::string ContentClient::GetProduct() const {
   return std::string();
 }
 
+std::string ContentClient::GetLastChange() const {
+  return std::string();
+}
+
+std::string ContentClient::GetV8Version() const {
+  return std::string();
+}
+
 std::string ContentClient::GetUserAgent() const {
   return std::string();
 }