[chromedriver] Fix error when failing to download chrome.

TBR=frankf@chromium.org
BUG=

Review URL: https://codereview.chromium.org/130273006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246945 0039d316-1c4b-4281-b951-d872f2087c98
GTTF: Clearly tag unreliable results in the new test launcher

The new chromium_trybot recipe retries failing tests after deapplying
developer's patch. If the tests still fail without the patch, the run
is considered a success.

To avoid the above masking real failures (e.g. when the launcher is exiting
early and skipping some tests), have a single global tag covering all
similar conditions in which chromium_trybot or similar recipe should
not rely on retries without the patch and return failure.

BUG=317931, 236893
R=sky@chromium.org

Review URL: https://codereview.chromium.org/135963008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246946 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246946
Fix DCHECK in RtcVideoCapturer.

In dtor of RtcVideoCaptuer, the DCHECK is meant to check |state_|.

R=ronghuawu@chromium.org

Review URL: https://codereview.chromium.org/140133005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246947 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246947