Fix ResourceBundleImageSource so that it does not crash when 1.4x resources are requested.

BUG=148841
Test=ResourceBundle.GetImageNamed

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=157201

Review URL: https://chromiumcodereview.appspot.com/10928231

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@157583 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed