Call glFinish just before reallocating offscreen_saved_color_texture_ as possible workaround for crash in NVIDIA driver on Mac. Also fixed bug ID in comment.
Call glFinish just before reallocating offscreen_saved_color_texture_
as possible workaround for crash in NVIDIA driver on Mac. Also fixed
bug ID in comment.

BUG=94103
TEST=none (manually tested some WebGL content)
Review URL: http://codereview.chromium.org/7800006

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@98729 0039d316-1c4b-4281-b951-d872f2087c98

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