Add deferred texture upload API.

src/image/SkImage.cpp

Index: src/image/SkImage.cpp
diff --git a/src/image/SkImage.cpp b/src/image/SkImage.cpp
index 674a73574332c5530b0bfff2da5e8f4303aede5f..8d06155f631f23479a10bb9b522c8fde383888f6 100644
--- a/src/image/SkImage.cpp
+++ b/src/image/SkImage.cpp
@@ -343,6 +343,26 @@ bool SkImage::isLazyGenerated() const {
 
 #if !SK_SUPPORT_GPU
 
+size_t SkImage::getDeferredTextureImageSize(const GrContextThreadSafeProxy&,
+                                            const DeferredTextureImageUsageParams[],
+                                            int paramCnt) const {
+    return 0;
+}
+
+const SkImage::DeferredTextureImage* createDeferredTextureImageInClientStorage(
+                                                        const GrContextThreadSafeProxy&,
+                                                        const DeferredTextureImageUsageParams[],
+                                                        int paramCnt,
+                                                        void* imageTextureDataBuffer,
+                                                        size_t imageTextureDataBufferSize) const {
+    return nullptr;
+}
+
+SkImage* SkImage::NewFromDeferredTextureImage(GrContext* context, const DeferredTextureImage&,
+                                              SkBudgeted) {
+    return nullptr;
+}
+
 SkImage* SkImage::NewFromTexture(GrContext*, const GrBackendTextureDesc&, SkAlphaType,
                                  TextureReleaseProc, ReleaseContext) {
     return nullptr;