Add optional data parameter to createBuffer

src/gpu/GrResourceProvider.cpp

Index: src/gpu/GrResourceProvider.cpp
diff --git a/src/gpu/GrResourceProvider.cpp b/src/gpu/GrResourceProvider.cpp
index a8c9e5a3c76ab67c5898b7bb0285a5beda043fe1..9a2fff31418eb5b53610eb7d75ab8b865b3bc7f6 100644
--- a/src/gpu/GrResourceProvider.cpp
+++ b/src/gpu/GrResourceProvider.cpp
@@ -91,7 +91,8 @@ GrPathRange* GrResourceProvider::createGlyphs(const SkTypeface* tf,
 }
 
 GrBuffer* GrResourceProvider::createBuffer(size_t size, GrBufferType intendedType,
-                                           GrAccessPattern accessPattern, uint32_t flags) {
+                                           GrAccessPattern accessPattern, uint32_t flags,
+                                           const void* data) {
     if (this->isAbandoned()) {
         return nullptr;
     }
@@ -110,11 +111,14 @@ GrBuffer* GrResourceProvider::createBuffer(size_t size, GrBufferType intendedTyp
             scratchFlags = GrResourceCache::kPreferNoPendingIO_ScratchFlag;
         }
         GrGpuResource* resource = this->cache()->findAndRefScratchResource(key, size, scratchFlags);
-        if (resource) {
-            return static_cast<GrBuffer*>(resource);
+        if (GrBuffer* buffer = static_cast<GrBuffer*>(resource)) {
+            if (data) {
+                buffer->updateData(data, size);
+            }
+            return buffer;
         }
     }
-    return this->gpu()->createBuffer(size, intendedType, accessPattern);
+    return this->gpu()->createBuffer(size, intendedType, accessPattern, data);
 }
 
 GrBatchAtlas* GrResourceProvider::createAtlas(GrPixelConfig config,