Update V8 to r3121 as required for WebKit update.

Change-Id: Ic53e0aef9a9eb9b71ee7d25a8aef61520bba899c
diff --git a/src/bootstrapper.h b/src/bootstrapper.h
index 809cd41..15fc88d 100644
--- a/src/bootstrapper.h
+++ b/src/bootstrapper.h
@@ -66,9 +66,8 @@
   static bool IsActive();
 
   // Encoding/decoding support for fixup flags.
-  class FixupFlagsIsPCRelative: public BitField<bool, 0, 1> {};
-  class FixupFlagsUseCodeObject: public BitField<bool, 1, 1> {};
-  class FixupFlagsArgumentsCount: public BitField<uint32_t, 2, 32-2> {};
+  class FixupFlagsUseCodeObject: public BitField<bool, 0, 1> {};
+  class FixupFlagsArgumentsCount: public BitField<uint32_t, 1, 32-1> {};
 
   // Support for thread preemption.
   static int ArchiveSpacePerThread();