Allow content script insertion on about:-URLs.
Adds a new key content_scripts[*].match_about_blank and
InjectionDetails.matchAboutBlank.
If true, content scripts will also be inserted in about:* frames
provided that its origin matches a pattern in the extension permissions.
BUG=76429,55084,146789
TEST=browser_tests: ExtensionApiTest.ContentScriptAboutBlank*:ScriptContextTest.GetEffectiveDocumentURL
Review URL: https://codereview.chromium.org/226663003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@270690 0039d316-1c4b-4281-b951-d872f2087c98
28 files changed
