Create GPU-less build of Skia.



git-svn-id: http://skia.googlecode.com/svn/trunk@4912 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/gradients/SkLinearGradient.cpp b/src/effects/gradients/SkLinearGradient.cpp
index 9d4ee6d..cd44d3f 100644
--- a/src/effects/gradients/SkLinearGradient.cpp
+++ b/src/effects/gradients/SkLinearGradient.cpp
@@ -472,6 +472,8 @@
     }
 }
 
+#if SK_SUPPORT_GPU
+
 /////////////////////////////////////////////////////////////////////
 
 class GrGLLinearGradient : public GrGLGradientStage {
@@ -541,3 +543,12 @@
     return SkNEW_ARGS(GrLinearGradient, (context, *this, sampler));
 }
 
+#else
+
+GrCustomStage* SkLinearGradient::asNewCustomStage(GrContext* context,
+                                                  GrSamplerState* sampler) const {
+    SkDEBUGFAIL("Should not call in GPU-less build");
+    return NULL;
+}
+
+#endif