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/GrSurfaceContext.cpp b/src/gpu/GrSurfaceContext.cpp
index 1a8ca89..b5b4d26 100644
--- a/src/gpu/GrSurfaceContext.cpp
+++ b/src/gpu/GrSurfaceContext.cpp
@@ -131,7 +131,7 @@
 // In MDB mode the reffing of the 'getLastOpsTask' call's result allows in-progress
 // GrOpsTasks to be picked up and added to by renderTargetContexts lower in the call
 // stack. When this occurs with a closed GrOpsTask, a new one will be allocated
-// when the renderTargetContext attempts to use it (via getOpsTask).
+// when the surfaceDrawContext attempts to use it (via getOpsTask).
 GrSurfaceContext::GrSurfaceContext(GrRecordingContext* context,
                                    GrSurfaceProxyView readView,
                                    const GrColorInfo& info)