Reland 152221 - chromeos: Sync animation.

Reland 152221 - chromeos: Sync animation.

- Pulse app list button while LauncherModel has STATUS_LOADING;
- Remove LauncherItemStatus::STATUS_IS_PENDING etc since it is no longer needed;
- ChromeLauncherController sets LauncherModel::STATUS_LOADING on starting and
  watch for sync finish and pending extension install. It sets
  LauncherModel::STATUS_NORMAL when sync is finished and there is no pending
  extension install from sync, or when a maximum 60 seconds timeout since
  turning on loading status;

BUG=129236
TEST=Verify sync animation after OOBE.

TBR=sky@chromium.org, kalman@chromium.org

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=152684

[xiyuan, 2012-08-20 22:48:40]

r152221 breaks a bunch of browser_tests:

ExtensionTabsTest.GetAllWindows
ExtensionTabsTest.DefaultToIncognitoWhenItIsForced
ExtensionTabsTest.DefaultToIncognitoWhenItIsForcedAndNoArgs
ExtensionTabsTest.QueryCurrentWindowTabs
ExtensionApiNewTabTest.Tabs
ExtensionApiTest.Tabs2
BrowserCloseTest.DownloadsCloseCheck_2
BrowserCloseTest.DownloadsCloseCheck_3
BrowserCloseTest.DownloadsCloseCheck_4
BrowserCloseTest.DownloadsCloseCheck_5

http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%2...

Those tests runs a nested message loop and upon their finish, they call
MessageLoop::Quit. However, MessageLoop::Quit is QuitWhenidle and because of the
added pulsing animation, the current message loop is not becoming idle (until
pulse animation finishes after 60s). And the tests eventually times out.

Since those tests are not sync related, we could fix them by deferring the
loading animation until sync is actually setup and running.

Another possible fix would be go to all the broken tests and change
MessageLoop::Quit to QuitNow.

[sky, 2012-08-20 23:14:35]

LGTM

[commit-bot: I haz the power, 2012-08-21 16:27:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/xiyuan@chromium.org/10860053/2001

[commit-bot: I haz the power, 2012-08-21 16:27:12]

Failed to apply patch for
chrome/browser/ui/ash/launcher/chrome_launcher_controller.h:
While running patch -p1 --forward --force;
patching file chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
Hunk #1 FAILED at 17.
1 out of 8 hunks FAILED -- saving rejects to file
chrome/browser/ui/ash/launcher/chrome_launcher_controller.h.rej

[commit-bot: I haz the power, 2012-08-21 21:52:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/xiyuan@chromium.org/10860053/12003

[commit-bot: I haz the power, 2012-08-22 00:19:12]

Change committed as 152684