Merge to XFA: Get CJS_RuntimeFactory out of CJS_GlobalData management.

(cherry picked from commit 9a817f092e6800e9338b41acf4ea0416b6ad4467)
Original Review URL: https://codereview.chromium.org/1338993005 .

Small manual merge in
  fpdfsdk/src/javascript/JS_GlobalData.cpp
  fpdfsdk/src/javascript/global.cpp

TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1341913002 .
5 files changed