Don't dirty MIP chain when damage bounds is empty

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1618383002

Review URL: https://codereview.chromium.org/1618383002

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index 84f2bdda8e..bf0b297c8c 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -2239,13 +2239,13 @@ void GrGLGpu::flushRenderTarget(GrGLRenderTarget* target, const SkIRect* bound)
             }
         }
     }
+
+    // Mark any MIP chain and resolve buffer as dirty if and only if there is a non-empty bounds.
     if (nullptr == bound || !bound->isEmpty()) {
         target->flagAsNeedingResolve(bound);
-    }
-
-    GrTexture *texture = target->asTexture();
-    if (texture) {
-        texture->texturePriv().dirtyMipMaps(true);
+        if (GrTexture *texture = target->asTexture()) {
+            texture->texturePriv().dirtyMipMaps(true);
+        }
     }
 }