All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=631091

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6vf6rQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6qel_AoM


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

chromium-rel-win7-gpu-intel
chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9006148326886011488

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Remove duplication of encoded image data
Author  : hajimehoshi
Commit description:
  
Now there are at least two encoded image data: one is in Image/ImageResource as
SharedBuffer and the other is in DeferredImageDecoder as SkRWBuffer. This CL
removes former when possible (non-icon bitmaps), and generate the SharedBuffer
from the SkRWBuffer if needed.

Design Doc: https://docs.google.com/document/d/1v0yTAZ6wkqX2U_M6BNIGUJpM1s0TIw1VsqpxoL7aciY/edit?usp=sharing

BUG= 618623 
TEST=blink_platform_unittests --gtest_filter=BitmapImageTest.*:ImageDecoderTest.*

Review-Url: https://codereview.chromium.org/2054643003
Cr-Commit-Position: refs/heads/master@{#406238}
Commit  : 36f4eb81d4a791a8e3dfea4ba2418465d30bcc90
Date    : Tue Jul 19 10:02:08 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@406231  9358541  71791.1  5  good
chromium@406236  9358541  71791.1  5  good
chromium@406237  9358541  71791.1  5  good
chromium@406238  9620685  117234   5  bad    <--
chromium@406239  9646899  117234   5  bad
chromium@406241  9699328  92681.9  5  bad
chromium@406251  9699328  0.0      5  bad

Bisect job ran on: winx64intel_perf_bisect
Bug ID: 631091

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests system_health.memory_desktop
Test Metric: load_social-memory:chrome:all_processes:reported_by_chrome:blink_gc:effective_size_avg/load_social_facebook
Relative Change: 3.64%
Score: 99.0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64intel_perf_bisect/builds/1040
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006148326886011488


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4565089722564608

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