[Android] Add observer methods for tab show/hide/setClosing.
commita9fa25d8f08bccb70084c2db35b270386f080396
authortedchoc <tedchoc@chromium.org>
Thu, 8 Jan 2015 23:43:05 +0000 (8 15:43 -0800)
committerCommit bot <commit-bot@chromium.org>
Thu, 8 Jan 2015 23:43:59 +0000 (8 23:43 +0000)
tree131a8c3877154a93fb7d886019af7ac19ba74577
parent833f0fc8245b2792b996bf765243fb4433a979a2
[Android] Add observer methods for tab show/hide/setClosing.

BUG=443773

Review URL: https://codereview.chromium.org/837323002

Cr-Commit-Position: refs/heads/master@{#310630}
chrome/android/java/src/org/chromium/chrome/browser/EmptyTabObserver.java
chrome/android/java/src/org/chromium/chrome/browser/Tab.java
chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java