Add OILPAN string to developer build chromium's webkit revision

content/common/user_agent.cc

Index: content/common/user_agent.cc
diff --git a/content/common/user_agent.cc b/content/common/user_agent.cc
index 1176c488d3d89ab814b0f79d1f1930b16449be17..5e83f869aaa41c1fa9fae8be0ba98574dcfcc002 100644
--- a/content/common/user_agent.cc
+++ b/content/common/user_agent.cc
@@ -37,7 +37,11 @@ std::string GetWebKitVersion() {
   return base::StringPrintf("%d.%d (%s)",
                             WEBKIT_VERSION_MAJOR,
                             WEBKIT_VERSION_MINOR,
-                            WEBKIT_SVN_REVISION);
+                            WEBKIT_SVN_REVISION
+#if defined(ENABLE_OILPAN) && !defined(OFFICIAL_BUILD)
+                            "-OILPAN"
+#endif
+    );
 }
 
 int GetWebKitMajorVersion() {
@@ -49,7 +53,11 @@ int GetWebKitMinorVersion() {
 }
 
 std::string GetWebKitRevision() {
-  return WEBKIT_SVN_REVISION;
+  return WEBKIT_SVN_REVISION
+#if defined(ENABLE_OILPAN) && !defined(OFFICIAL_BUILD)
+         "-OILPAN"
+#endif
+    ;
 }
 
 std::string BuildOSCpuInfo() {