[rac] Use dark grey instead of black color for overlay message

Relanding after a speculative revert.

This patch changes the color of the text on the overlay page from
Sk_ColorBLACK (000) to Sk_ColorDKGRAY (444). This change affects all
platforms, because the color is specified in the platform independent
dialog controller.

The patch also reduces the font size by 1 point on the overlay message.

Although the patch attempts to match mocks as close as possible, there're still
slight differences because mocks use a font that's not available in Chrome and
have a lower anti-aliasing value, which makes the font look skinnier than what
is possible in Chrome.

BUG=294485

Review URL: https://codereview.chromium.org/24452002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225517 0039d316-1c4b-4281-b951-d872f2087c98
[sql] Log tag with sqlite errors.

Log lines like:
ERROR:connection.cc(1007)] sqlite error 266, errno 5: disk I/O error
would be ever so much more useful if they indicated which database
they were associated with.  This logs the histogram tag, which indicates
the logical database (the code which owns this connection).  [As
opposed to the filesystem name.]

BUG=none

Review URL: https://codereview.chromium.org/24638002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225518 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225518
Send discovery packet at the end of registration

Send discovery packet at the end of registration to generate network
traffic so that the update to the printer status will go through even
if the user has the Windows firewall enabled.

BUG=298244

Review URL: https://codereview.chromium.org/24640002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225519 0039d316-1c4b-4281-b951-d872f2087c98
cc: Fix the LayerTreeHostContextTestDontUseLostResources test.

The test was not drawing anything since it did not cause damage after
the first frame, and this meant that it was never losing its context
at all.

Also it was not setting up the capabilities to use io surfaces early
enough, so I started hitting asserts.

Also also, it was creating RenderPasses with ids reversed, so the
child render pass would never be used.

R=piman
BUG=263069

Review URL: https://codereview.chromium.org/24640003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225520 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225520