More clang warning fixes.

More clang warning fixes.

Mostly unused functions and variables removed.

BUG=None
TEST=ninja -C out/Debug most
     ninja -C out/Release most
R=bsalomon@google.com,robertphillips@google.com,caryclark@google.com

Committed: http://code.google.com/p/skia/source/detail?r=11884

[tfarina, 2013-10-18 01:17:42]

Brian, Robert for everything.

Cary for the pathops file.

To be able to build everything I need to add -Wno-uninitialized somewhere
(haven't tried yet).

Otherwise I get things like:
/usr/include/qt4/QtCore/qsharedpointer_impl.h:595:43: error: field 'd' is
uninitialized when used here [-Werror,-Wuninitialized]
    inline QWeakPointer(X *ptr) : d(ptr ? d->getAndRef(ptr) : 0), value(ptr)

May be my qt version is old? I don't know.

Anyway, please have a look.

Thanks!

[caryclark, 2013-10-18 01:58:52]

(for path ops test only) lgtm

[bsalomon, 2013-10-18 13:29:57]

On 2013/10/18 01:58:52, caryclark wrote:
> (for path ops test only) lgtm

I think some of the functions you removed are indeed called in debug builds.

[tfarina, 2013-10-19 12:30:17]

Brian, please, could you take another look?

It was because those functions were used only in SkASSERT calls, which is
compiled out in release build.

[bsalomon, 2013-10-21 13:22:32]

lgtm

[commit-bot: I haz the power, 2013-10-21 16:13:34]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/tfarina@chromium.org/27933002/90001

[commit-bot: I haz the power, 2013-10-21 16:41:04]

Change committed as 11884