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..4c01823932e5bc1866d02b932d84edc95375fdda 100644
--- a/src/gpu/gl/GrGLTexture.cpp
+++ b/src/gpu/gl/GrGLTexture.cpp
@@ -37,6 +37,10 @@ void GrGLTexture::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
 void GrGLTexture::onRelease() {
     if (fInfo.fID) {
         if (GrGpuResource::kBorrowed_LifeCycle != fTextureIDLifecycle) {
+            if (desc().fTextureStorageAllocator) {
+                desc().fTextureStorageAllocator->deallocateTextureStorage(
+                        reinterpret_cast<GrBackendObject>(&fInfo));
+            }
             GL_CALL(DeleteTextures(1, &fInfo.fID));
         }
         fInfo.fID = 0;