fix compilation errors when VISUALIZE_COMPLEX_CLIP is set

fix the following compilation errors

When VISUALIZE_COMPLEX_CLIP is set to 1, there are four errors. This is due to
the interface change. Fix it.

../src/gpu/GrGpu.cpp: In member function ‘bool GrGpu::setupClipAndFlushState(GrPrimitiveType)’:
../src/gpu/GrGpu.cpp:677:21: error: ‘class GrGpu’ has no member named ‘setColor’
../src/gpu/GrGpu.cpp:698:29: error: ‘class GrGpu’ has no member named ‘setColor’
../src/gpu/GrGpu.cpp:701:29: error: ‘class GrGpu’ has no member named ‘setColor’
../src/gpu/GrGpu.cpp:705:25: error: ‘class GrGpu’ has no member named ‘setColor’

BUG=
TEST=

[guanqun, 2012-01-29 05:54:35]

Please review.
Thanks!

[bsalomon, 2012-01-30 14:20:05]

On 2012/01/29 05:54:35, guanqun wrote:
> Please review.
> Thanks!

Landed in r3100.