Fix few inconsistencies in handling fixed-function texture coordinate set generation

src/gpu/gl/GrGLProgram.cpp

Index: src/gpu/gl/GrGLProgram.cpp
diff --git a/src/gpu/gl/GrGLProgram.cpp b/src/gpu/gl/GrGLProgram.cpp
index 7ddd8613f19b571f606ac6000682bb4fc1b8c3e9..f80bc2e550569be8fedac1e7d0d4f328df5d4bf5 100644
--- a/src/gpu/gl/GrGLProgram.cpp
+++ b/src/gpu/gl/GrGLProgram.cpp
@@ -241,8 +241,11 @@ void GrGLProgram::setData(GrDrawState::BlendOptFlags blendOpts,
     fColorEffects->setData(fGpu, fUniformManager, colorStages);
     fCoverageEffects->setData(fGpu, fUniformManager, coverageStages);
 
+
+    // TexGen state applies to the the fixed function vertex shader. For custom shaders, it's
+    // ignored, so we don't need to change the texgen settings in that case.
     if (!fHasVertexShader) {
-        fGpu->disableUnusedTexGen(fNumTexCoordSets);
+        fGpu->flushTexGenSettings(fNumTexCoordSets);
     }
 }