More SkISizification in GPU code.

Uses SkISize instead of separate width/height variables in many places.

No functional change.

Change-Id: If87b2c57e43d810f0820c4e3c9ef8e6b8ebd10ba
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/249886
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrRenderTask.cpp b/src/gpu/GrRenderTask.cpp
index a69c48b..2f6c0e6 100644
--- a/src/gpu/GrRenderTask.cpp
+++ b/src/gpu/GrRenderTask.cpp
@@ -53,7 +53,7 @@
 
     SkIRect targetUpdateBounds;
     if (ExpectedOutcome::kTargetDirty == this->onMakeClosed(caps, &targetUpdateBounds)) {
-        SkASSERT(SkIRect::MakeWH(fTarget->width(), fTarget->height()).contains(targetUpdateBounds));
+        SkASSERT(SkIRect::MakeSize(fTarget->dimensions()).contains(targetUpdateBounds));
         if (fTarget->requiresManualMSAAResolve()) {
             SkASSERT(fTarget->asRenderTargetProxy());
             fTarget->asRenderTargetProxy()->markMSAADirty(targetUpdateBounds);