Fix for 89228 and 89232 both related to close buttons on the Mac.

Turning on CoreAnimationLayers in tabviews caused a serious performance
regression. We now use an NSAnimation to animate the close button.

xib change is to turn off layers in tabviews.
Roll GTM 440:446 - Gets us GTMKeyValueAnimation

BUG=89232, 89228
TEST=Test described in 89232. For 89228 verified that close button appears in tab, info bar and download bar.

Review URL: http://codereview.chromium.org/7375014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@92652 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 79eabaa..e0671b8 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -3939,6 +3939,8 @@
             '../third_party/GTM/AppKit/GTMFadeTruncatingTextFieldCell.m',
             '../third_party/GTM/AppKit/GTMIBArray.h',
             '../third_party/GTM/AppKit/GTMIBArray.m',
+            '../third_party/GTM/AppKit/GTMKeyValueAnimation.h',
+            '../third_party/GTM/AppKit/GTMKeyValueAnimation.m',
             '../third_party/GTM/AppKit/GTMNSAnimation+Duration.h',
             '../third_party/GTM/AppKit/GTMNSAnimation+Duration.m',
             '../third_party/GTM/AppKit/GTMNSBezierPath+CGPath.h',