Server-side bug: http://b/114764977

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a336dd09327ff666da1042309c4b07ab7849c85a

commit a336dd09327ff666da1042309c4b07ab7849c85a
Author: Peter Kotwicz <pkotwicz@chromium.org>
Date: Thu Nov 01 18:58:33 2018

[Android WebAPK Refactor] Send activity name in intent only for share targets 8/X

This CL changes the WebAPK to send the name of the launching activity only for
share targets. The goal of this CL are:
- In an upcoming CL I will send an intent to Chrome to relaunch the WebAPK. This CL removes the need
  to send the action which launched the WebAPK to Chrome. (ACTION_SEND can be assumed if the
  org.chromium.webapk.selected_share_target_activity_class_name extra is set.)
- Add a layer of defense in depth for POST share targets. An incoming intent is for a POST share
  target if:
  1) org.chromium.webapk.selected_share_target_activity_class_name is set on the intent
  2) The <meta-data> for the passed in activity has a org.chromium.webapk.shell_apk.shareEnctype
     key.

BUG=817263, 885313

Change-Id: I3667d257f711f1e474a44e3fd9aaf5c41552f30c
Reviewed-on: https://chromium-review.googlesource.com/c/1307075
Commit-Queue: Peter Kotwicz <pkotwicz@chromium.org>
Reviewed-by: Xi Han <hanxi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604656}
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/libs/common/src/org/chromium/webapk/lib/common/WebApkConstants.java
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/shell_apk/current_version/current_version.gni
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/shell_apk/junit/src/org/chromium/webapk/shell_apk/h2o/LaunchTest.java
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/HostBrowserLauncher.java
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/HostBrowserLauncherParams.java
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/h2o/H2OLauncher.java
[modify] https://crrev.com/a336dd09327ff666da1042309c4b07ab7849c85a/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/h2o/H2OTransparentLauncherActivity.java

I'd love to make squoosh.app a share target for images, so if you're looking for a site to demo it on, let me know.

That's awesome! It'll be a while before we're ready to launch, but we'll keep you in the loop

Also blocked on internal http://b/120852302

This issue has an owner, a component and a priority, but is still listed as untriaged or unconfirmed. By definition, this bug is triaged. Changing status to "assigned". Please reach out to me if you disagree with how I've done this.