Roll V8 to 8e0dcfc4.

Just a routine roll.

TBR=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2518933003
diff --git a/DEPS b/DEPS
index e997d6c..79bd322 100644
--- a/DEPS
+++ b/DEPS
@@ -19,7 +19,7 @@
   'skia_revision': 'a9fd106d0c4dd5449c607add0716db7bbd81bc73',
   'tools_memory_revision': '427f10475e1a8d72424c29d00bf689122b738e5d',
   'trace_event_revision': '06294c8a4a6f744ef284cd63cfe54dbf61eea290',
-  'v8_revision': '1fe5910cfbae66c0933358962b6b0e8102f275ce',
+  'v8_revision': '8e0dcfc4ac75c0bef9063bd5dec4dafaa3409b6d',
 }
 
 deps = {