Remoting: Replace dialog box placeholder title on Win

BUG=
R=garykac@chromium.org

Review URL: https://codereview.chromium.org/152823004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249624 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249624
Refactor Create/Update context_menus_api functions to separate file.
There is no functionality change.

Inspired by the idea of splitting http://crrev.com/111113002 into independent
smaller CLs.

BUG=
Test=None, refactoring change.

Review URL: https://codereview.chromium.org/149173012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249625 0039d316-1c4b-4281-b951-d872f2087c98
Narrow silk pageset to the most plausible content

This removes a few pages that were duplicative or not mobile-focused enough to
meet the silk bar. Then, "why" descriptions were added to explain why the page
is on the pageset. Finallly, it moves a few pages from file urls to
jankfree.org/silk in order to have them point at image resources.

R=ernstm
CC=rschoen
BUG=340777

Review URL: https://codereview.chromium.org/140653014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249626 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249626