Revert "Reduce dependence on GrSurface's origin field"

This reverts commit 467022b1861033d968195687da15270c208279ff.

Reason for revert: GrAHardwareBufferImageGenerator.cpp

Original change's description:
> Reduce dependence on GrSurface's origin field
> 
> Unfortunately, GrGPU and its ilk are still using the GrSurface's origin a lot. I will clean that up in a second CL.
> 
> Change-Id: Iba729440ce8ea8d24bb7f4e5de55ed576a0f176d
> Reviewed-on: https://skia-review.googlesource.com/24700
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

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

Change-Id: I1b3f5c3b82d250ac164beb1d5c83abb6c3c6ab3b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/25620
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrTextureAdjuster.cpp b/src/gpu/GrTextureAdjuster.cpp
index 166cb9d..be29857 100644
--- a/src/gpu/GrTextureAdjuster.cpp
+++ b/src/gpu/GrTextureAdjuster.cpp
@@ -46,8 +46,7 @@
     GrUniqueKey key;
     this->makeCopyKey(copyParams, &key, nullptr);
     if (key.isValid()) {
-        sk_sp<GrTextureProxy> cachedCopy = fContext->resourceProvider()->findProxyByUniqueKey(
-                                                            key, this->originalProxy()->origin());
+        sk_sp<GrTextureProxy> cachedCopy = fContext->resourceProvider()->findProxyByUniqueKey(key);
         if (cachedCopy) {
             return cachedCopy;
         }
@@ -59,7 +58,6 @@
     sk_sp<GrTextureProxy> copy = CopyOnGpu(fContext, std::move(proxy), contentArea, copyParams);
     if (copy) {
         if (key.isValid()) {
-            SkASSERT(copy->origin() == this->originalProxy()->origin());
             fContext->resourceProvider()->assignUniqueKeyToProxy(key, copy.get());
             this->didCacheCopy(key);
         }