Fix implicit access to raw pointer of scoped_refptr.

components/suggestions/image_manager_unittest.cc

Index: components/suggestions/image_manager_unittest.cc
diff --git a/components/suggestions/image_manager_unittest.cc b/components/suggestions/image_manager_unittest.cc
index 28398c342689b304ee5431ecac1da24afc8082d2..4ead42d118ca5cecc97c1cf1e952361bfee44cfc 100644
--- a/components/suggestions/image_manager_unittest.cc
+++ b/components/suggestions/image_manager_unittest.cc
@@ -204,7 +204,7 @@ TEST_F(ImageManagerTest, GetImageForURLNetworkCacheHit) {
   // Expect something in the cache.
   auto encoded_image =
       image_manager_->GetEncodedImageFromCache(GURL(kTestUrl1));
-  EXPECT_NE(nullptr, encoded_image);
+  EXPECT_TRUE(encoded_image);
 
   base::RunLoop run_loop;
   image_manager_->GetImageForURL(GURL(kTestUrl1),