All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=707782

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnJP7lAgM


Bot(s) for this bug's original alert(s):

Android Builder

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8983325011995909728

thestig@, is pdf support compiled for Android? 

We added 3 files to FreeType in order to be able to share FreeType between PDFium and Blink. If Chrome does not compile the built in PDFium for Android, but instead relies on the system PDF viewer and downloading, then we can exempt building the 3 files   "src/src/type1/type1.c", "src/src/psaux/psaux.c", and  "src/src/cid/type1cid.c" from building for Android.

=== Auto-CCing suspected CL author stgao@chromium.org ===

Hi stgao@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : stgao
  Commit : 27b5c368e1cd8535b26aacc593e544e18d04d29f
  Date   : Thu Mar 30 23:26:51 2017
  Subject: Reland of Support for OpenType Font Variations on Windows (patchset #1 id:1 of https://codereview.chromium.org/2786263002/ )

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : resource_sizes
  Metric       : MonochromePublic.apk_Specifics/normalized apk size
  Change       : 0.04% | 73410412.0 -> 73443180.0

Revision             Result               N
chromium@460925      73410412 +- 0.0      6      good
chromium@460926      73443180 +- 0.0      6      bad       <--

To Run This Test
  src/build/android/resource_sizes.py --chromium-output-directory {CHROMIUM_OUTPUT_DIR} --chartjson {CHROMIUM_OUTPUT_DIR}/apks/MonochromePublic.apk

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983325011995909728

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5734424974458880


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

That's certainly the case. There is no pdfium for Android Chrome.

Route to drott@ as drott@ is the author of the original CL.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/945c459ee86d70a798af66346f7025453d9b16cd

commit 945c459ee86d70a798af66346f7025453d9b16cd
Author: drott <drott@chromium.org>
Date: Mon Apr 10 11:23:09 2017

Do not build type1, type1cid and psaux FreeType modules on Android

In 27b5c368e1cd8535b26aacc593e544e18d04d29f we added three additional
FreeType modules required by PDFium on desktop. Since we do not build
PDFium for Android we do not need to build those modules for the Android
platform and can save on binary size.

BUG= 707782 

Review-Url: https://codereview.chromium.org/2800393002
Cr-Commit-Position: refs/heads/master@{#463219}

[modify] https://crrev.com/945c459ee86d70a798af66346f7025453d9b16cd/third_party/freetype/BUILD.gn
[modify] https://crrev.com/945c459ee86d70a798af66346f7025453d9b16cd/third_party/freetype/include/freetype-custom-config/ftmodule.h

Locally, the improvement looks good. Could you verify the savings, agrieve@? Thank you in advance.

Looks like we won't be able to verify until https://bugs.chromium.org/p/chromium/issues/detail?id=710025 is fixed.

Confirmed!
https://chromeperf.appspot.com/report?sid=ec464e89358810af9b857af88d316e5ee1b735fc532f3b1a883380d26d29da06&rev=463219

Last commit shrunk the apk by 61474 bytes. \o/

Thanks for verifying.