Revert 254571 "Remove the enable-d3d11 flag so that d3d11 is ena..."

Bug in D3D 11 runtime. Reverting on behalf of geofflang@chromium.org

> Remove the enable-d3d11 flag so that d3d11 is enabled by default.
> 
> BUG=346394
> R=kbr@chromium.org
> 
> Review URL: https://codereview.chromium.org/177003009

TBR=bajones@chromium.org

Review URL: https://codereview.chromium.org/189543017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256018 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256018
Define print format macros for NSInteger & NSUInteger

The size of NSInteger and NSUInteger varies between 32-bit and 64-bit
architectures, however does not provides macro to safely format them
and instead recommend casting the value to the larger version that is
used on 64-bit architecture.

Using a cast could cause some formatting to be missed (if the type of
a variable changes), so instead we define our own macros to format those
types safely.

BUG=349458

Review URL: https://codereview.chromium.org/192443003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256019 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256019