fix non-gpu build

BUG=
R=bungeman@google.com
TBR=bungeman@google.com

Author: humper@google.com

Review URL: https://codereview.chromium.org/197283040

git-svn-id: http://skia.googlecode.com/svn/trunk@13868 2bbb7eff-a529-9590-31e7-b0007b416f81

src/core/SkPicture.cpp

@@ -451,10 +451,12 @@ void SkPicture::flatten(SkWriteBuffer& buffer) const {
     }
 }
 
+#if SK_SUPPORT_GPU
 bool SkPicture::suitableForGpuRasterization(GrContext* context) const {
     // Stub for now; never veto GPu rasterization.
     return true;
 }
+#endif
 
 bool SkPicture::willPlayBackBitmaps() const {
     if (!fPlayback) {