Remove PerBrowser launcher, reland step 1 of 2

Remove PerBrowser launcher, reland step 1 of 2

Relanding https://chromiumcodereview.appspot.com/22887015/ in two steps to
preserve history of c/b/ui/ash/launcher/chrome_launcher_controller_per_app.*

Step 2 will rename chrome_launcher_controller_per_app.* to
chrome_launcher_controller.*

Original description:
Remove per-browser.* and related tests.
Remove IsPerAppLauncher() interface in LauncherDelegate.
Remove ash-disable-per-app-launcher switch.
Change class name from ChromeLauncherControllerPerApp to ChromeLauncherController.

In the next CL, BrowserLauncherItemController will be replaced with new browser status monitor only for monitoring browser and tab status.

BUG=169303
TEST=unit_tests, browser_tests Launcher*
TBR=skuhne@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=218945

[commit-bot: I haz the power, 2013-08-21 21:36:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamescook@chromium.org/23068021/1

[commit-bot: I haz the power, 2013-08-22 01:19:46]

Retried try job too often on linux_rel for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[commit-bot: I haz the power, 2013-08-22 03:49:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamescook@chromium.org/23068021/1

[commit-bot: I haz the power, 2013-08-22 08:05:55]

Change committed as 218945

[Mr4D (OOO till 08-26), 2013-08-22 14:04:39]

lgtm