Merge to XFA: Wean CJS_Value off of v8::Isolate.

(cherry picked from commit 287b63d9ab410783d71cf37291f09fd57d3059b4)
Original Review URL: https://codereview.chromium.org/1394103002 .

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1394053003 .
16 files changed