The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build/+/8b20c8c84b1a400173458f5179b8dc0f3137018c

commit 8b20c8c84b1a400173458f5179b8dc0f3137018c
Author: Helen Li <xunjieli@chromium.org>
Date: Mon Apr 17 15:42:55 2017

Remove disable_brotli_filter from Cronet recipe

Cronet now includes Brotli support.

Bug:  710633 
Change-Id: I91ce954e1b0ab26dcc8eddd61baa7726e8fc626f
Reviewed-on: https://chromium-review.googlesource.com/479154
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Xunjie Li <xunjieli@chromium.org>

[modify] https://crrev.com/8b20c8c84b1a400173458f5179b8dc0f3137018c/scripts/slave/recipe_modules/cronet/example.expected/gn_test.json
[modify] https://crrev.com/8b20c8c84b1a400173458f5179b8dc0f3137018c/scripts/slave/recipe_modules/chromium_android/chromium_config.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9

commit 186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9
Author: xunjieli <xunjieli@chromium.org>
Date: Tue Apr 18 13:45:47 2017

[Cronet] Enable Brotli

- removes the compile time flag to disable brotli when building Cronet.
- adds an API to enable Brotli on CronetEngine.
- adds three basic java tests in BrotliTest.java

BUG= 710633 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester

Review-Url: https://codereview.chromium.org/2805053005
Cr-Commit-Position: refs/heads/master@{#465216}

[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/BUILD.gn
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/api.txt
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/api/src/org/chromium/net/CronetEngine.java
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/api/src/org/chromium/net/ICronetEngineBuilder.java
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/api_version.txt
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/cronet_url_request_context_adapter.cc
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/java/src/org/chromium/net/impl/CronetEngineBuilderImpl.java
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java
[add] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/test/javatests/src/org/chromium/net/BrotliTest.java
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/test/src/org/chromium/net/Http2TestHandler.java
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/android/test/src/org/chromium/net/Http2TestServer.java
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/stale_host_resolver_unittest.cc
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/tools/cr_cronet.py
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/url_request_context_config.cc
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/url_request_context_config.h
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/components/cronet/url_request_context_config_unittest.cc
[modify] https://crrev.com/186d2bf1b6ff14929c79d6d4a8b310ba639dfbf9/tools/mb/mb_config.pyl

Binary size footprint as a percentage of libcronet.so in release:

armv7
148.0 KiB
Relative change:  + 4.9%
https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgosHEuQkM

arm64
160.0 KiB
Relative change: + 3.2%

https://chromeperf.appspot.com/report?sid=cc9d842d17a31b42cc52e08bd709f3ed8a3f109374c8cdcdf0d0e3f193286f2d&rev=465220


x86
164.0 KiB
Relative change: + 2.8%

https://chromeperf.appspot.com/report?sid=c0e27db037f1dbe3079daccb4aaec67e6a26ea1db584744452070d2ad3a7fda7&rev=465219


MIPS: 
192.1 KiB
Relative change: + 2.9%
https://chromeperf.appspot.com/report?sid=5773a327381e24ffd7ed5d3e12c9b86f11948bd687a654b0eeede5bea5ec93d4&rev=465219

For reference the commit in comment #2 went into 60.0.3075.0