Reset the user image before setting it so ImageView can detect that it has changed.

R=xiyuan@chromium.org
BUG=338115

Review URL: https://codereview.chromium.org/140113006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247428 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247428
Fix the timing when EmbeddedWorker sends back WorkerStarted

So that when the browser process receives the msg it can be
sure the worker script has been evaluated and worker run loop
has started.

BUG=313530

Review URL: https://codereview.chromium.org/142373003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247429 0039d316-1c4b-4281-b951-d872f2087c98
Move net::RequestPriority to range-checked IPC serialization macros.

The use of out-of-range net::RequestPriority values is being hit with
the IPC fuzzer, and is easy to fix.

BUG=338532

Review URL: https://codereview.chromium.org/145583013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247430 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247430