Remove user chosen encoding flag from DocumentLoader::createWriterFor

In practice, it is never set to true, since the only way for it to be set true is based on a previous DocumentWriter being set to true.

BUG=

Review URL: https://codereview.chromium.org/444113002

git-svn-id: svn://svn.chromium.org/blink/trunk@179867 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Bust the MemoryCache to ensure script requests reach the browser-side and get added to and retrieved from the ServiceWorker's script cache.

BUG=387589

Review URL: https://codereview.chromium.org/419693002

git-svn-id: svn://svn.chromium.org/blink/trunk@179868 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[rebaseline.py] Quit LogToServer thread immediately on exception

Send QUIT_LOG to LogToServer thread immediately on exception
to avoid blocking.

We still need to press ctrl-c twice to quit the whole rebaseline-o-matic
script. This is intended because we want the first ctrl-c to break the
current rebaseline, and the second to break the outer loop. This also
ensures that the loop continues on any temporary exception raised during
a rebaseline.

Review URL: https://codereview.chromium.org/454933003

git-svn-id: svn://svn.chromium.org/blink/trunk@179869 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r179857

http://src.chromium.org/viewvc/blink?view=revision&revision=179857

BUG=394004
TBR=wangxianzhu@chromium.org

Review URL: https://codereview.chromium.org/452923007

git-svn-id: svn://svn.chromium.org/blink/trunk@179870 bbb929c8-8fbe-4397-9dbb-9b2b20218538