Roll src/third_party/pdfium ec885bad72ef..4754adaf70d8 (14 commits)

https://pdfium.googlesource.com/pdfium.git/+log/ec885bad72ef..4754adaf70d8


git log ec885bad72ef..4754adaf70d8 --date=short --no-merges --format='%ad %ae %s'
2018-10-18 thestig@chromium.org Add unit tests for CFX_Matrix::TransformRect().
2018-10-18 thestig@chromium.org Forward declare some fxjs/ classes.
2018-10-18 thestig@chromium.org Remove a few V8 includes from header files.
2018-10-18 thestig@chromium.org Change CXFA_LoaderContext::dwFlags to bFilterSpace.
2018-10-18 thestig@chromium.org Avoid pass by value in FPDFPage_Flatten()'s GetMatrix() helper.
2018-10-18 thestig@chromium.org Push/pop the graphics state stack when flattening.
2018-10-18 thestig@chromium.org Convert CXFA_LoaderContext to a struct.
2018-10-18 thestig@chromium.org Clean up CXFA_TextLayout.
2018-10-18 tsepez@chromium.org Add JavaScript tests for event API.
2018-10-18 thestig@chromium.org Cache CFGAS_FontMgr::GetFontByUnicode() failures on Windows.
2018-10-18 thestig@chromium.org Shuffle platform-specifc code in CFGAS_FontMgr::GetFontByUnicode().
2018-10-18 tsepez@chromium.org De-dup some static string tables in cjs_publicmethods.cpp
2018-10-18 tsepez@chromium.org Add JavaScript public methods tests.
2018-10-18 tsepez@chromium.org Repack CPDFSDK_FieldAction.


Created with:
  gclient setdep -r src/third_party/pdfium@4754adaf70d8

The AutoRoll server is located here: https://autoroll.skia.org/r/pdfium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.



BUG=chromium:896366,chromium:895469
TBR=dsinclair@chromium.org

Change-Id: I1ed6f308d1b8f8606e7d90d0cf2794e1ed929ae8
Reviewed-on: https://chromium-review.googlesource.com/c/1289649Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#600925}

DEPS

@@ -134,7 +134,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.
-  'pdfium_revision': 'ec885bad72ef8bae21270d235ae5029ef2bdc134',
+  'pdfium_revision': '4754adaf70d8708610ea31a4d5e3df7c4fcb2ef0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling openmax_dl
   # and whatever else without interference from each other.