skia: Add support for CHROMIUM_image backed textures.

src/gpu/SkGpuDevice.h

Index: src/gpu/SkGpuDevice.h
diff --git a/src/gpu/SkGpuDevice.h b/src/gpu/SkGpuDevice.h
index 8bf04b1182a55e4a2ff7c5e39f80b39c9b5cd31e..ec3e15870620022426c4dc60d11bf93705832ab0 100644
--- a/src/gpu/SkGpuDevice.h
+++ b/src/gpu/SkGpuDevice.h
@@ -18,6 +18,7 @@
 #include "GrDrawContext.h"
 #include "GrContext.h"
 #include "GrSurfacePriv.h"
+#include "GrTypes.h"
 
 class GrAccelData;
 class GrTextureProducer;
@@ -52,7 +53,8 @@ public:
      * the resource cache budget. On failure, returns nullptr.
      */
     static SkGpuDevice* Create(GrContext*, SkSurface::Budgeted, const SkImageInfo&,
-                               int sampleCount, const SkSurfaceProps*, InitContents);
+                               int sampleCount, const SkSurfaceProps*,
+                               InitContents, GrTextureStorageAllocator = GrTextureStorageAllocator());
 
     ~SkGpuDevice() override {}
 
@@ -255,7 +257,7 @@ private:
     bool drawDashLine(const SkPoint pts[2], const SkPaint& paint);
 
     static GrRenderTarget* CreateRenderTarget(GrContext*, SkSurface::Budgeted, const SkImageInfo&,
-                                              int sampleCount);
+                                              int sampleCount, GrTextureStorageAllocator);
 
     friend class GrAtlasTextContext;
     friend class SkSurface_Gpu;      // for access to surfaceProps