Fix the tab flashing issue when merging a tab into another browser window.
Fix the tab flashing issue when merging a tab into another browser window.

BUG=116329
TEST=The issued is fixed. No more flashing during tab merging on chromeos.

Review URL: https://chromiumcodereview.appspot.com/9668030

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@126152 0039d316-1c4b-4281-b951-d872f2087c98

ropik/chromium,ropik/chromium,gavinp/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,gavinp/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium