Check for abandoned texture in GrTextureAdjuster::refTextureSafeForParams

src/gpu/GrTextureParamsAdjuster.cpp

Index: src/gpu/GrTextureParamsAdjuster.cpp
diff --git a/src/gpu/GrTextureParamsAdjuster.cpp b/src/gpu/GrTextureParamsAdjuster.cpp
index a68c3d76571a1f02141895eb8fa4961038169eef..1657fb9b95ca5474bae0c635bc1ad728669733a0 100644
--- a/src/gpu/GrTextureParamsAdjuster.cpp
+++ b/src/gpu/GrTextureParamsAdjuster.cpp
@@ -165,6 +165,11 @@ GrTexture* GrTextureAdjuster::refTextureSafeForParams(const GrTextureParams& par
     CopyParams copyParams;
     const SkIRect* contentArea = this->contentAreaOrNull();
 
+    if (!context) {
+        // The texture was abandoned.
+        return nullptr;
+    }
+
     if (contentArea && GrTextureParams::kMipMap_FilterMode == params.filterMode()) {
         // If we generate a MIP chain for texture it will read pixel values from outside the content
         // area.