Revert of Use std::unique_ptr.

tests/ImageTest.cpp

Index: tests/ImageTest.cpp
diff --git a/tests/ImageTest.cpp b/tests/ImageTest.cpp
index 3c2c31cca9f600a0a44fa1e73ece97a447502429..9dfbe3695ba51c8ef76f9be5da14f3e6e5e0c7a6 100644
--- a/tests/ImageTest.cpp
+++ b/tests/ImageTest.cpp
@@ -163,7 +163,7 @@
     assert_equal(reporter, image, nullptr, decoded);
 
     // Now see if we can instantiate an image from a subset of the surface/origEncoded
-
+    
     decoded.reset(SkImage::NewFromEncoded(origEncoded, &ir));
     REPORTER_ASSERT(reporter, decoded);
     assert_equal(reporter, image, &ir, decoded);
@@ -877,7 +877,7 @@
                 for (auto budgeted : { SkBudgeted::kNo, SkBudgeted::kYes }) {
                     SkAutoTUnref<SkImage> newImage(
                         SkImage::NewFromDeferredTextureImageData(context, buffer, budgeted));
-                    REPORTER_ASSERT(reporter, newImage != nullptr);
+                    REPORTER_ASSERT(reporter, SkToBool(newImage));
                     if (newImage) {
                         check_images_same(reporter, image, newImage);
                     }