Refine ChromeVox's treatment of containers

Refine ChromeVox's treatment of containers

1. merge ignored containers and ignored leaf nodes into one predicate
2. only visit containers that are also visited by the provided predicate. For example, an element will match against a focusable toolbar, but a line won't.
3. scan the initial subtree of a node when moving to the next node if either of the following are true:
the node is a container or
the node doesn't match the predicate (e.g. element).
This takes care of syncing when the current range is on an arbitrary position in the tree.
When moving backwards, the leaf predicate restricts how deeply the backwards movement syncs downwards in the tree.

BUG=613473
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation

Committed: https://crrev.com/709ec11a4037d0fd97cff6a395d63ef574044d72
Cr-Commit-Position: refs/heads/master@{#397737}

[David Tseng, 2016-06-01 17:45:25]

Description was changed from

==========
Bla
==========

to

==========
Bla
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation
==========

[David Tseng, 2016-06-01 17:46:08]

Description was changed from

==========
Bla
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation
==========

to

==========
Refine ChromeVox's treatment of containers

1. merge ignored containers and ignored leaf nodes into one predicate
2. only visit containers that are also visited by the provided predicate. For
example, an element will match against a focusable toolbar, but a line won't.
3. scan the initial subtree of a node when moving to the next node if either of
the following are true:
the node is a container or
the node doesn't match the predicate (e.g. element).
This takes care of syncing when the current range is on an arbitrary position in
the tree.
When moving backwards, the leaf predicate restricts how deeply the backwards
movement syncs downwards in the tree.

BUG=613473
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation
==========

[David Tseng, 2016-06-01 17:46:09]

dtseng@chromium.org changed reviewers:
+ dmazzoni@chromium.org

[dmazzoni, 2016-06-03 16:10:51]

lgtm

[David Tseng, 2016-06-03 16:33:32]

The CQ bit was checked by dtseng@chromium.org

[commit-bot: I haz the power, 2016-06-03 16:33:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2028173003/1

[commit-bot: I haz the power, 2016-06-03 17:18:07]

Description was changed from

==========
Refine ChromeVox's treatment of containers

1. merge ignored containers and ignored leaf nodes into one predicate
2. only visit containers that are also visited by the provided predicate. For
example, an element will match against a focusable toolbar, but a line won't.
3. scan the initial subtree of a node when moving to the next node if either of
the following are true:
the node is a container or
the node doesn't match the predicate (e.g. element).
This takes care of syncing when the current range is on an arbitrary position in
the tree.
When moving backwards, the leaf predicate restricts how deeply the backwards
movement syncs downwards in the tree.

BUG=613473
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation
==========

to

==========
Refine ChromeVox's treatment of containers

1. merge ignored containers and ignored leaf nodes into one predicate
2. only visit containers that are also visited by the provided predicate. For
example, an element will match against a focusable toolbar, but a line won't.
3. scan the initial subtree of a node when moving to the next node if either of
the following are true:
the node is a container or
the node doesn't match the predicate (e.g. element).
This takes care of syncing when the current range is on an arbitrary position in
the tree.
When moving backwards, the leaf predicate restricts how deeply the backwards
movement syncs downwards in the tree.

BUG=613473
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation
==========

[commit-bot: I haz the power, 2016-06-03 17:18:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-03 17:19:56]

Description was changed from

==========
Refine ChromeVox's treatment of containers

1. merge ignored containers and ignored leaf nodes into one predicate
2. only visit containers that are also visited by the provided predicate. For
example, an element will match against a focusable toolbar, but a line won't.
3. scan the initial subtree of a node when moving to the next node if either of
the following are true:
the node is a container or
the node doesn't match the predicate (e.g. element).
This takes care of syncing when the current range is on an arbitrary position in
the tree.
When moving backwards, the leaf predicate restricts how deeply the backwards
movement syncs downwards in the tree.

BUG=613473
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation
==========

to

==========
Refine ChromeVox's treatment of containers

1. merge ignored containers and ignored leaf nodes into one predicate
2. only visit containers that are also visited by the provided predicate. For
example, an element will match against a focusable toolbar, but a line won't.
3. scan the initial subtree of a node when moving to the next node if either of
the following are true:
the node is a container or
the node doesn't match the predicate (e.g. element).
This takes care of syncing when the current range is on an arbitrary position in
the tree.
When moving backwards, the leaf predicate restricts how deeply the backwards
movement syncs downwards in the tree.

BUG=613473
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation

Committed: https://crrev.com/709ec11a4037d0fd97cff6a395d63ef574044d72
Cr-Commit-Position: refs/heads/master@{#397737}
==========

[commit-bot: I haz the power, 2016-06-03 17:19:57]

Patchset 1 (id:??) landed as
https://crrev.com/709ec11a4037d0fd97cff6a395d63ef574044d72
Cr-Commit-Position: refs/heads/master@{#397737}