Update V8 to version 1.3.11.

This version contains a crash fix and some IA32 math optimizations.
Review URL: http://codereview.chromium.org/205008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@26210 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -36,7 +36,7 @@ deps = {
     "http://gyp.googlecode.com/svn/trunk@651",
 
   "src/v8":
-    "http://v8.googlecode.com/svn/trunk@2866",
+    "http://v8.googlecode.com/svn/trunk@2891",
 
   "src/native_client":
     "http://nativeclient.googlecode.com/svn/trunk/src/native_client@385",