[Android WebView] Enable spatial navigation / DPAD

[Android WebView] Enable spatial navigation / DPAD

Turn on the --enable-spatial-navigation flag, and also bubble up
unhandled DPAD events to the neighboring views in the view tree.
Likewise, WebContentsDelegate::TakeFocus() bubble to logical next
or previous neighbor view.

Also disabled the FileSystem API while in the area updating flags.

BUG=286698
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=221946

[boliu, 2013-09-07 04:21:35]

lgtm

[commit-bot: I haz the power, 2013-09-07 04:53:54]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joth@chromium.org/23619024/7001

[commit-bot: I haz the power, 2013-09-07 05:27:36]

Sorry for I got bad news for ya.
Compile failed with a clobber build on android_clang_dbg.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_cl...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-09-07 17:31:35]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joth@chromium.org/23619024/7001

[boliu, 2013-09-07 17:37:18]

https://chromiumcodereview.appspot.com/23619024/diff/7001/android_webview/lib...
File android_webview/lib/main/aw_main_delegate.cc (right):

https://chromiumcodereview.appspot.com/23619024/diff/7001/android_webview/lib...
android_webview/lib/main/aw_main_delegate.cc:68:
cl->AppendSwitch(switches::kDisableFileSystem);
Don't think that was a flake, need to CONTENT_EXPORT these switches.

[commit-bot: I haz the power, 2013-09-07 17:49:34]

Sorry for I got bad news for ya.
Compile failed with a clobber build on android_clang_dbg.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_cl...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-09-07 22:04:36]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joth@chromium.org/23619024/34001

[commit-bot: I haz the power, 2013-09-08 03:38:33]

Change committed as 221946