Add HTML frontend to memory_inspector.

This adds the basic infrastructure for the web based ui:
 - A python-based www server.
 - The HTML/JS client.
At the current state, the only functionality available is listing
processes/device stats.

BUG=340294
NOTRY=true

Review URL: https://codereview.chromium.org/190853010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256646 0039d316-1c4b-4281-b951-d872f2087c98
Create a task manager browsertest for <webview>.

Required moving the Match* functions into task_manager_browsertest_util.

BUG=348836
TEST=browser_tests
TBR=yoshiki@chromium.org

Review URL: https://codereview.chromium.org/191623003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256647 0039d316-1c4b-4281-b951-d872f2087c98
Remove remaining log_result arguments from GetProtectedFileContents

The implementation of GetProtectedFileContents no longer supports a
log_result argument, but one call and one test mock still
had these. Remove them.

NOTRY=true
BUG=351795

Review URL: https://codereview.chromium.org/197943002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256648 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256648
Disable flaky test End2EndTest.GlitchWith3Buffers

BUG=351325
TBR=mikhal

Review URL: https://codereview.chromium.org/198183002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256649 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256649