Surface Chrome SVN Revision in dev tools 'version' command

chrome/common/chrome_content_client.cc

Index: chrome/common/chrome_content_client.cc
diff --git a/chrome/common/chrome_content_client.cc b/chrome/common/chrome_content_client.cc
index 535250b34a2401664519e7703df9de0d43c9d0cd..9068e0c7e7a38dd31083b22cc5ccec68801f88f2 100644
--- a/chrome/common/chrome_content_client.cc
+++ b/chrome/common/chrome_content_client.cc
@@ -428,6 +428,13 @@ std::string ChromeContentClient::GetProduct() const {
   return GetProductImpl();
 }
 
+std::string ChromeContentClient::GetProductSCMRevision() const {
+  chrome::VersionInfo version_info;
+  std::string revision("@");
+  revision += version_info.is_valid() ? version_info.LastChange() : "0";
+  return revision;
+}
+
 std::string ChromeContentClient::GetUserAgent() const {
   std::string product = GetProduct();
 #if defined(OS_ANDROID)