Defer enabling native accessibility until it's used.

Defer enabling native accessibility until it's used.

We were enabling native accessibility if any accessibility service was
running, but many Android users have accessibility services other than
screen readers. Now we only enable native accessibility if
getAccessibilityNodeProvider is called on the web content.
Many popular Android apps that happen to be accessibility services will
no longer trigger Chrome's accessibility mode.

BUG=280717
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=220541

[dmazzoni, 2013-08-29 16:41:28]

See the bug for more context, and a description of exactly how I tested it.

[David Trainor- moved to gerrit, 2013-08-29 18:22:07]

lgtm

https://codereview.chromium.org/23750002/diff/1/content/public/android/java/s...
File
content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
(right):

https://codereview.chromium.org/23750002/diff/1/content/public/android/java/s...
content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java:2787:
mNativeContentViewCore != 0 && Build.VERSION.SDK_INT >=
Build.VERSION_CODES.JELLY_BEAN) {
line too long

[commit-bot: I haz the power, 2013-08-29 19:31:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dmazzoni@chromium.org/23750002/9001

[commit-bot: I haz the power, 2013-08-29 19:43:32]

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

[dmazzoni, 2013-08-29 22:01:45]

+joth or tedchoc for OWNERS review

[joth, 2013-08-30 03:57:41]

lgtm

[commit-bot: I haz the power, 2013-08-30 05:26:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dmazzoni@chromium.org/23750002/9001

[commit-bot: I haz the power, 2013-08-30 09:05:11]

Change committed as 220541