Revert "Remove origin field from GrSurface"

This reverts commit df0e09feacb29290fe94d37f921731b18f2edae0.

Reason for revert: Experimental revert to see if this is blocking the roll


Original change's description:
> Remove origin field from GrSurface
> 
> This mainly consists of rm origin from GrSurface and the wrapBackEnd*
> methods and then re-adding an explicit origin parameter to all the 
> GrGpu methods that need it.
> 
> Change-Id: Iabd79ae98b227b5b9409f3ab5bbcc48af9613c18
> Reviewed-on: https://skia-review.googlesource.com/26363
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>

TBR=bsalomon@google.com,robertphillips@google.com

Change-Id: Id606aa01e84e2b83be71d833eefca477c1ad0d01
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/29220
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrBackendTextureImageGenerator.h b/src/gpu/GrBackendTextureImageGenerator.h
index f99055a..1124b96 100644
--- a/src/gpu/GrBackendTextureImageGenerator.h
+++ b/src/gpu/GrBackendTextureImageGenerator.h
@@ -16,8 +16,7 @@
 
 class GrBackendTextureImageGenerator : public SkImageGenerator {
 public:
-    static std::unique_ptr<SkImageGenerator> Make(sk_sp<GrTexture>, GrSurfaceOrigin,
-                                                  sk_sp<GrSemaphore>,
+    static std::unique_ptr<SkImageGenerator> Make(sk_sp<GrTexture>, sk_sp<GrSemaphore>,
                                                   SkAlphaType, sk_sp<SkColorSpace>);
 
     ~GrBackendTextureImageGenerator() override;
@@ -34,7 +33,7 @@
 #endif
 
 private:
-    GrBackendTextureImageGenerator(const SkImageInfo& info, GrTexture*, GrSurfaceOrigin,
+    GrBackendTextureImageGenerator(const SkImageInfo& info, GrTexture*,
                                    uint32_t owningContextID, sk_sp<GrSemaphore>,
                                    const GrBackendTexture&);