skia: Add support for CHROMIUM_image backed textures.

src/image/SkSurface_Gpu.cpp

Index: src/image/SkSurface_Gpu.cpp
diff --git a/src/image/SkSurface_Gpu.cpp b/src/image/SkSurface_Gpu.cpp
index 753f422e79b4815616e5b10caa1e621b5a3d0ef0..24ac6d33124b82a237f3bfffd6a07d25bcdb8e64 100644
--- a/src/image/SkSurface_Gpu.cpp
+++ b/src/image/SkSurface_Gpu.cpp
@@ -120,9 +120,11 @@ SkSurface* SkSurface::NewRenderTargetDirect(GrRenderTarget* target, const SkSurf
 }
 
 SkSurface* SkSurface::NewRenderTarget(GrContext* ctx, Budgeted budgeted, const SkImageInfo& info,
-                                      int sampleCount, const SkSurfaceProps* props) {
-    SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(ctx, budgeted, info, sampleCount, props,
-                                                         SkGpuDevice::kClear_InitContents));
+                                      int sampleCount, const SkSurfaceProps* props,
+                                      GrTextureStorageAllocator customAllocator) {
+    SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(
+            ctx, budgeted, info, sampleCount, props, SkGpuDevice::kClear_InitContents,
+            customAllocator));
     if (!device) {
         return nullptr;
     }