GitLab

Add option to bypass the data compression proxy if the request resource
type (as inferred by the renderer process) is not an image.

For background, see this design doc:

https://docs.google.com/a/google.com/document/d/1Kz92Fmw3lv_R-2aNvLp8jW9lkfKOZciTZtni2qQ_Adc/edit

BUG=391836

Review URL: https://codereview.chromium.org/332313003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@281951 0039d316-1c4b-4281-b951-d872f2087c98