skia: Add support for CHROMIUM_image backed textures.

src/gpu/gl/GrGLTexture.cpp

Index: src/gpu/gl/GrGLTexture.cpp
diff --git a/src/gpu/gl/GrGLTexture.cpp b/src/gpu/gl/GrGLTexture.cpp
index 39a8d9279feef49637882b5e7a15a1c0e59305d5..10a37e88725582d411bd1197a4a98e132d7ca11d 100644
--- a/src/gpu/gl/GrGLTexture.cpp
+++ b/src/gpu/gl/GrGLTexture.cpp
@@ -37,6 +37,11 @@ void GrGLTexture::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
 void GrGLTexture::onRelease() {
     if (fInfo.fID) {
         if (GrGpuResource::kBorrowed_LifeCycle != fTextureIDLifecycle) {
+            if (desc().fTextureStorageAllocator.fDeallocateTextureStorage) {
+                desc().fTextureStorageAllocator.fDeallocateTextureStorage(
+                        desc().fTextureStorageAllocator.fCtx,
+                        reinterpret_cast<GrBackendObject>(&fInfo));
+            }
             GL_CALL(DeleteTextures(1, &fInfo.fID));

[bsalomon, 2016/02/01 14:54:42]

this->desc().

Shouldn't we be skipping DeleteTextures() here if the deallocator is used?

[erikchen, 2016/02/01 22:58:32]

Responded to both comments.

         }
         fInfo.fID = 0;