Replace fixed-size array of effect stages in GrDrawState with two appendable arrays, one for color, one for coverage.

R=robertphillips@google.com

Review URL: https://codereview.chromium.org/16952006

git-svn-id: http://skia.googlecode.com/svn/trunk@9592 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/GLProgramsTest.cpp b/tests/GLProgramsTest.cpp
index 53af430..55c4c09 100644
--- a/tests/GLProgramsTest.cpp
+++ b/tests/GLProgramsTest.cpp
@@ -118,8 +118,6 @@
 
 bool GrGpuGL::programUnitTest(int maxStages) {
 
-    maxStages = GrMin(maxStages, (int)GrDrawState::kNumStages);
-
     GrTextureDesc dummyDesc;
     dummyDesc.fFlags = kRenderTarget_GrTextureFlagBit;
     dummyDesc.fConfig = kSkia8888_GrPixelConfig;
@@ -207,7 +205,7 @@
         GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(type));
         if (NULL != context) {
             GrGpuGL* gpu = static_cast<GrGpuGL*>(context->getGpu());
-            int maxStages = GrDrawState::kNumStages;
+            int maxStages = 6;
 #if SK_ANGLE
             // Some long shaders run out of temporary registers in the D3D compiler on ANGLE.
             if (type == GrContextFactory::kANGLE_GLContextType) {