Android: Proguard rules to allow shrinking for <native>

Android: Proguard rules to allow shrinking for <native>

This removes ~200 unused methods on the java side (but not their native
side implementations). ChomePublic's dex shrinks by ~10kb.

BUG=688465

[agrieve, 2017-02-03 19:12:10]

Description was changed from

==========
Android: Proguard rules to allow shrinking for <native>

This removes ~200 unused methods on the java side (but not their native
side implementations). ChomePublic's dex shrinks by ~10kb.

BUG=688465
==========

to

==========
Android: Proguard rules to allow shrinking for <native>

This removes ~200 unused methods on the java side (but not their native
side implementations). ChomePublic's dex shrinks by ~10kb.

BUG=688465
==========

[agrieve, 2017-02-03 19:12:10]

agrieve@chromium.org changed reviewers:
+ estevenson@chromium.org

[agrieve, 2017-02-03 19:12:14]

The CQ bit was checked by agrieve@chromium.org to run a CQ dry run

[agrieve, 2017-02-03 19:12:21]

On 2017/02/03 19:12:14, agrieve wrote:
> The CQ bit was checked by mailto:agrieve@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-02-03 19:12:54]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[estevenson, 2017-02-03 19:17:56]

lgtm

[commit-bot: I haz the power, 2017-02-03 20:38:26]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-03 20:38:27]

Dry run: Try jobs failed on following builders:
  android_n5x_swarming_rel on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_n5x_...)

[agrieve, 2017-02-06 11:26:44]

On 2017/02/03 19:17:56, estevenson wrote:
> lgtm

Looks like this will need to wait until we refactor the native registrations as
well:
Device(038494cc003bfd13) 02-03 20:29:23.899  4206  4248 E dalvikvm: ERROR:
couldn't find native method
Device(038494cc003bfd13) 02-03 20:29:23.899  4206  4248 E dalvikvm: Requested:
Lorg/chromium/base/JavaExceptionReporter;.nativeReportJavaStackTrace:(Ljava/lang/String;)V
Device(038494cc003bfd13) 02-03 20:29:23.899  4206  4248 E chromium:
[0203/202923.917849:ERROR:jni_generator_helper.h(38)] RegisterNatives failed in
gen/base/base_jni_headers/base/jni/JavaExceptionReporter_jni.h
Device(038494cc003bfd13) 02-03 20:29:23.899  4206  4248 E chromium:
[0203/202923.918175:ERROR:jni_registrar.cc(21)] JavaExceptionReporter failed
registration!
Device(038494cc003bfd13) 02-03 20:29:23.909  4206  4248 W System.err:
java.lang.NoSuchMethodError: no static or non-static method
"Lorg/chromium/base/JavaExceptionReporter;.nativeReportJavaStackTrace(Ljava/lang/String;)V"


RegisterNatives fails if the native function is removed by proguard.

Closing this out.