Hide GrDrawTarget::Caps's member vars

Review URL: https://codereview.appspot.com/6499044



git-svn-id: http://skia.googlecode.com/svn/trunk@5328 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL_program.cpp b/src/gpu/gl/GrGpuGL_program.cpp
index 174f5cb..7e62f93 100644
--- a/src/gpu/gl/GrGpuGL_program.cpp
+++ b/src/gpu/gl/GrGpuGL_program.cpp
@@ -774,7 +774,7 @@
             desc->fFirstCoverageStage = firstCoverageStage;
         }
 
-        if (this->getCaps().fDualSourceBlendingSupport &&
+        if (this->getCaps().dualSourceBlendingSupport() &&
             !(blendOpts & (kEmitCoverage_BlendOptFlag | kCoverageAsAlpha_BlendOptFlag))) {
             if (kZero_GrBlendCoeff == dstCoeff) {
                 // write the coverage value to second color