Do not wait for the double tap timeout on pages with fixed page scale

Do not wait for the double tap timeout on pages with fixed page scale

We should't wait for the double tap timeout if we are on a web page
that has a fixed page scale. This patch lets us register the single
tap right away if that is the case.

BUG=133391
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=163445

[Yusuf, 2012-10-19 21:18:32]

This carries over the fix on m18 with some modifications needed after the
refactorings in between.

[Yaron, 2012-10-22 18:04:52]

lgtm but please wait for aelias to confirm

[aelias_OOO_until_Jul13, 2012-10-22 18:31:07]

lgtm

[commit-bot: I haz the power, 2012-10-22 19:37:44]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yusufo@chromium.org/11228010/1

[commit-bot: I haz the power, 2012-10-22 19:55:56]

Sorry for I got bad news for ya.
Compile failed with a clobber build on android_dbg.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_db...
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, 2012-10-22 20:44:50]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yusufo@chromium.org/11228010/9001

[commit-bot: I haz the power, 2012-10-22 21:20:32]

Sorry for I got bad news for ya.
Compile failed with a clobber build on android_dbg.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_db...
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, 2012-10-22 21:25:24]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yusufo@chromium.org/11228010/10002

[commit-bot: I haz the power, 2012-10-22 23:52:13]

Change committed as 163445