Redirect chrome://extensions to the new chrome://settings/chromeExtensions.

Redirect chrome://extensions to the new chrome://settings/chromeExtensions.

The two modifications to the tests were needed because they were trying to
open chrome://extensions in incognito.

In one case, the test just needed any page (so I switched to about:blank)
and in the other we are testing for a condition that cannot happen anymore
because chrome://extensions could be loaded in incognito but chrome://settings
doesn't allow that -- it shunts the request to the non-incognito profile.

The test was testing that we don't crash in incognito, so I removed that test.

BUG=87377
TEST=Well... type in chrome://extensions and notice it redirects.
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=101046

[Finnur, 2011-09-13 17:36:46]

Aaron, please review. Also note that I'm deleting a test you created a while
back (which is no longer relevant after this change).

mpcomplete, this is an FYI: I'm modifying another test you made with what seems
like an innocent change to me.

[Matt Perry, 2011-09-13 19:00:40]

http://codereview.chromium.org/7888010/diff/5002/chrome/browser/extensions/ex...
File chrome/browser/extensions/extension_management_browsertest.cc (left):

http://codereview.chromium.org/7888010/diff/5002/chrome/browser/extensions/ex...
chrome/browser/extensions/extension_management_browsertest.cc:150:
IN_PROC_BROWSER_TEST_F(ExtensionManagementTest, Incognito) {
Wow, this test is ancient. I crawled through the history to try to see exactly
what it was trying to test, and found that it dates back to the time when we had
disabled extensions in incognito mode. I guess it can safely be removed now :)

[Aaron Boodman, 2011-09-14 05:49:52]

lgtm, thanks