Fix FaviconUtil::SelectFaviconFramesFromPNGs() so that it works when 1x is not a supported scale

BUG=None
TEST=None
R=ananta@chromium.org, sky@chromium.org

Review URL: https://codereview.chromium.org/192343002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256048 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256048
[NaCl SDK AppEngine] Fix earth and smoothlife builds for Clang 3.4

PNaCl now uses Clang 3.4, which is more strict about unused variables.

Also use logf instead of printf to prevent a presubmit warning from the Chromium repo. This is safe because this is an example, and not part of the Chromium build.

BUG=none
R=sbc@chromium.org

Review URL: https://codereview.chromium.org/192893004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256050 0039d316-1c4b-4281-b951-d872f2087c98
Remove some unused image assets

BUG=None
TEST=None
TBR=oshima

Review URL: https://codereview.chromium.org/192333002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256051 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256051