Dirty mipmaps whenever we upload new contents for a texture.

src/gpu/gl/GrGLGpu.cpp

Index: src/gpu/gl/GrGLGpu.cpp
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index 6accc59f9d82e358bd9368db7bb0f4d50fd1b67a..b4e7df03aed0ae4abd0b7c2df65aeb42fbc04ed8 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -840,6 +840,11 @@ bool GrGLGpu::onWritePixels(GrSurface* surface,
                                       left, top, width, height, config, texels);
     }
 
+    if (success) {
+        SkIRect rect = SkIRect::MakeXYWH(left, top, width, height);
+        this->didWriteToSurface(surface, &rect);
+    }
+
     return success;
 }
 
@@ -876,7 +881,8 @@ bool GrGLGpu::onTransferPixels(GrSurface* surface,
     success = this->uploadTexData(glTex->desc(), glTex->target(), kTransfer_UploadType,
                                   left, top, width, height, config, texels);
     if (success) {
-        glTex->texturePriv().dirtyMipMaps(true);
+        SkIRect rect = SkIRect::MakeXYWH(left, top, width, height);
+        this->didWriteToSurface(surface, &rect);
         return true;
     }