whole-word replace renderTargetContext with surfaceDrawContext

TBR:egdaniel@google.com

Change-Id: Ia471dfc1278bcbeb2b485e4deeb3e932060c50a6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343576
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrOnFlushResourceProvider.cpp b/src/gpu/GrOnFlushResourceProvider.cpp
index 42c8ba8..14fc516 100644
--- a/src/gpu/GrOnFlushResourceProvider.cpp
+++ b/src/gpu/GrOnFlushResourceProvider.cpp
@@ -32,17 +32,17 @@
         return nullptr;
     }
 
-    auto renderTargetContext = GrSurfaceDrawContext::Make(
+    auto surfaceDrawContext = GrSurfaceDrawContext::Make(
             context, colorType, std::move(colorSpace), std::move(proxy),
             origin, props, true);
 
-    if (!renderTargetContext) {
+    if (!surfaceDrawContext) {
         return nullptr;
     }
 
-    renderTargetContext->discard();
+    surfaceDrawContext->discard();
 
-    return renderTargetContext;
+    return surfaceDrawContext;
 }
 
 void GrOnFlushResourceProvider::addTextureResolveTask(sk_sp<GrTextureProxy> textureProxy,