Update V8 to r6238 as required by WebKit r75993

Change-Id: I12f638fcdd02d9102abab17d81c23cde63c08f22
diff --git a/ChangeLog b/ChangeLog
index c89ec31..41083e2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,17 +1,31 @@
+2010-01-10: Version 3.0.7
+
+        Stopped calling inherited setters when creating object literals
+        (issue 1015).
+
+        Changed interpretation of malformed \c? escapes in RegExp to match
+        JSC.
+
+        Enhanced the command-line debugger interface and fixed some minor
+        bugs in the debugger.
+
+        Performance improvements on the IA32 platform.
+
+
 2010-01-05: Version 3.0.6
 
-        Allowed getters and setters on JSArray elements (Issue 900).
+        Allowed getters and setters on JSArray elements (issue 900).
 
         Stopped JSON objects from hitting inherited setters (part of
-        Issue 1015).
+        issue 1015).
 
         Allowed numbers and strings as names of getters/setters in object
-        initializer (Issue 820).
+        initializer (issue 820).
 
         Added use_system_v8 option to gyp (off by default), to make it easier
         for Linux distributions to ship with system-provided V8 library.
 
-        Exported external array data accessors (Issue 1016).
+        Exported external array data accessors (issue 1016).
 
         Added labelled thread names to help with debugging (on Linux).
 
@@ -177,7 +191,7 @@
         Allowed forcing the use of a simulator from the build script
         independently of the host architecture.
 
-        Fixed FreeBSD port (Issue 912).
+        Fixed FreeBSD port (issue 912).
 
         Made windows-tick-processor respect D8_PATH.