Add resource provider flag to avoid client-side buffers

include/gpu/GrCaps.h

Index: include/gpu/GrCaps.h
diff --git a/include/gpu/GrCaps.h b/include/gpu/GrCaps.h
index 35e2c2ca302657a744cbb90af50afe8e08d66320..5086d79be9e0893466db96f1ffcbdd6eb3424fcc 100644
--- a/include/gpu/GrCaps.h
+++ b/include/gpu/GrCaps.h
@@ -160,6 +160,7 @@ public:
     bool sampleLocationsSupport() const { return fSampleLocationsSupport; }
     bool multisampleDisableSupport() const { return fMultisampleDisableSupport; }
     bool usesMixedSamples() const { return fUsesMixedSamples; }
+    bool preferClientSideDynamicBuffers() const { return fPreferClientSideDynamicBuffers; }
 
     bool useDrawInsteadOfClear() const { return fUseDrawInsteadOfClear; }
     bool useDrawInsteadOfPartialRenderTargetWrite() const {
@@ -297,6 +298,7 @@ protected:
     bool fSampleLocationsSupport                     : 1;
     bool fMultisampleDisableSupport                  : 1;
     bool fUsesMixedSamples                           : 1;
+    bool fPreferClientSideDynamicBuffers             : 1;
     bool fSupportsInstancedDraws                     : 1;
     bool fFullClearIsFree                            : 1;
     bool fMustClearUploadedBufferData                : 1;