Remove hit test mask methods from views::View

Remove hit test mask methods from views::View

The definitions of hit test masks and related logic
have beed moved into MaskedTargeterDelegate, so
remove HasHitTestMask(), GetHitTestMaskDeprecated(),
and the HitTestSource enum from views::View.

BUG=388838
TEST=ViewTargeterTest.HitTestCallsOnView

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=282779

[tdanderson, 2014-07-10 20:46:02]

Sadrul, can you please take a look? Note that the 
ViewTargeterTest.HitTestCallsOnView test is more-or-less just a copy of what
ViewTest.HitTestMasks used to be.

[sadrul, 2014-07-11 20:44:43]

LGTM

[tdanderson, 2014-07-11 20:51:43]

The CQ bit was checked by tdanderson@chromium.org

[commit-bot: I haz the power, 2014-07-11 20:52:54]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tdanderson@chromium.org/365263004/60001

[commit-bot: I haz the power, 2014-07-11 23:48:08]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  mac_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/mac_chromium_rel/buil...)

[commit-bot: I haz the power, 2014-07-12 02:23:05]

Change committed as 282779