The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5774087e1934b4d45ebca21786c461ec5a467410

commit 5774087e1934b4d45ebca21786c461ec5a467410
Author: pkotwicz <pkotwicz@chromium.org>
Date: Wed Aug 10 17:36:40 2016

Calls ShortcutHelper::FinalizeLauncherIcon() on worker thread instead of on IO thread

BUG= 635347 

Review-Url: https://codereview.chromium.org/2218413002
Cr-Commit-Position: refs/heads/master@{#411068}

[modify] https://crrev.com/5774087e1934b4d45ebca21786c461ec5a467410/chrome/browser/android/shortcut_helper.cc
[modify] https://crrev.com/5774087e1934b4d45ebca21786c461ec5a467410/chrome/browser/android/shortcut_helper.h
[modify] https://crrev.com/5774087e1934b4d45ebca21786c461ec5a467410/chrome/browser/android/webapps/add_to_homescreen_data_fetcher.cc
[modify] https://crrev.com/5774087e1934b4d45ebca21786c461ec5a467410/chrome/browser/android/webapps/add_to_homescreen_data_fetcher.h
[modify] https://crrev.com/5774087e1934b4d45ebca21786c461ec5a467410/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc
[modify] https://crrev.com/5774087e1934b4d45ebca21786c461ec5a467410/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a

commit c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a
Author: pkotwicz <pkotwicz@chromium.org>
Date: Fri Aug 12 19:56:44 2016

Run ShortcutHelper::AddToLauncherInBackgroundWithSkBitmap() on Worker thread instead of IO thread

This CL runs ShortcutHelper::AddToLauncherInBackgroundWithSkBitmap() on a
worker thread instead of the IO thread. According to
https://www.chromium.org/developers/design-documents/threading expensive tasks
should not be done on the IO thread. This CL also changes
ShortcutHelper::AddToLauncherInBackgroundWithSkBitmap() so that only the
expensive parts are run on the worker thread instead of the entire process
started by ShortcutHelper::AddToLauncherInBackgroundWithSkBitmap() running on
the worker thread.

BUG= 635347 

Review-Url: https://codereview.chromium.org/2228273002
Cr-Commit-Position: refs/heads/master@{#411743}

[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/android/javatests/src/org/chromium/chrome/browser/browsing_data/BrowsingDataRemoverIntegrationTest.java
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/android/javatests/src/org/chromium/chrome/browser/preferences/privacy/ClearBrowsingDataPreferencesTest.java
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappRegistryTest.java
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/browser/android/banners/app_banner_infobar_delegate_android.cc
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/browser/android/shortcut_helper.cc
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/browser/android/shortcut_helper.h
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/browser/android/webapk/webapk_installer.cc
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/browser/android/webapk/webapk_installer.h
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc
[modify] https://crrev.com/c67e6ac6fb0cc0b0ba6582ea1a9e8e62caf9748a/testing/android/junit/java/src/org/chromium/testing/local/BackgroundShadowAsyncTask.java