Add test for rendering an already abandoned texture-backed SkImage.

tests/ImageTest.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <functional>
 #include <initializer_list>
 #include <vector>
@@ skipping 456 matching lines @@
             }
         }
         if (image->width() != texImage->width() || image->height() != texImage->height()) {
             ERRORF(reporter, "newTextureImage changed the image size.");
         }
         if (image->isOpaque() != texImage->isOpaque()) {
             ERRORF(reporter, "newTextureImage changed image opaqueness.");
         }
     }
 }
+
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SkImage_drawAbandonedGpuImage, reporter, contextInfo) {
+    auto context = contextInfo.grContext();
+    auto image = create_gpu_image(context);
+    auto info = SkImageInfo::MakeN32(20, 20, kOpaque_SkAlphaType);
+    auto surface(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info));
+    as_IB(image)->peekTexture()->abandon();
+    surface->getCanvas()->drawImage(image, 0, 0);
+}
+
 #endif
 
 // https://bug.skia.org/4390
 DEF_TEST(ImageFromIndex8Bitmap, r) {
     SkPMColor pmColors[1] = {SkPreMultiplyColor(SK_ColorWHITE)};
     SkBitmap bm;
     SkAutoTUnref<SkColorTable> ctable(
             new SkColorTable(pmColors, SK_ARRAY_COUNT(pmColors)));
     SkImageInfo info =
             SkImageInfo::Make(1, 1, kIndex_8_SkColorType, kPremul_SkAlphaType);
@@ skipping 439 matching lines @@
                         otherContextInfo.grContext(), buffer, budgeted));
                     REPORTER_ASSERT(reporter, !newImage2);
                     testContext->makeCurrent();
                 }
             }
             sk_free(buffer);
         }
     }
 }
 #endif