Update html_viewer to follow to content handle API change.

Update html_viewer to follow to content handle API change.

R=aa@chromium.org

[qsr, 2014-10-31 17:58:48]

qsr@chromium.org changed reviewers:
+ jamesr@chromium.org

[qsr, 2014-10-31 17:58:48]

This CL will be needed for the next roll of mojo to chromium.

[jamesr, 2014-10-31 18:07:12]

Ah thanks, I'm already mostly through this (I'm doing an SDK roll) but will
cross-check.

[jamesr, 2014-10-31 18:10:19]

Thanks, I'll land this with the rest of the roll.  Very useful.

https://codereview.chromium.org/695953002/diff/1/mojo/services/html_viewer/ht...
File mojo/services/html_viewer/html_document_view.cc (right):

https://codereview.chromium.org/695953002/diff/1/mojo/services/html_viewer/ht...
mojo/services/html_viewer/html_document_view.cc:89: mojo::ShellPtr shell,
this code is in namespace mojo already, no need for mojo::

https://codereview.chromium.org/695953002/diff/1/mojo/services/html_viewer/ht...
File mojo/services/html_viewer/html_viewer.cc (right):

https://codereview.chromium.org/695953002/diff/1/mojo/services/html_viewer/ht...
mojo/services/html_viewer/html_viewer.cc:49: new
HTMLDocumentView(response.Pass(), shell.Pass(), compositor_thread_,
very odd wrapping here

[jamesr, 2014-10-31 18:29:31]

Incorporated this patch into https://codereview.chromium.org/694923002/