[Mac] Create CrTrackingArea and use it in TabStripController.
CrTrackingArea can prevent messages from being sent to the tracking area's
owner, which is the source of a significant number of zombie crashes. This hopes
to prevent that.
BUG=48709
TEST=Crash reports go down.
Review URL: http://codereview.chromium.org/6486002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@74940 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 3a96bfa..d4eac92 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2834,6 +2834,8 @@
'browser/ui/cocoa/toolbar/toolbar_controller.mm',
'browser/ui/cocoa/toolbar/toolbar_view.h',
'browser/ui/cocoa/toolbar/toolbar_view.mm',
+ 'browser/ui/cocoa/tracking_area.h',
+ 'browser/ui/cocoa/tracking_area.mm',
'browser/ui/cocoa/translate/after_translate_infobar_controller.h',
'browser/ui/cocoa/translate/after_translate_infobar_controller.mm',
'browser/ui/cocoa/translate/before_translate_infobar_controller.h',
