Tests: reduce verbosity

tests/BitmapTest.cpp

Index: tests/BitmapTest.cpp
diff --git a/tests/BitmapTest.cpp b/tests/BitmapTest.cpp
index 58e3c8b3ec71be8e7eb68f263a5a7b55e50f58d4..015b917464e7b2c48c164cd23c7d782b7cd08fb3 100644
--- a/tests/BitmapTest.cpp
+++ b/tests/BitmapTest.cpp
@@ -151,7 +151,9 @@ static void test_erasecolor_premul(skiatest::Reporter* reporter, SkColorType ct,
   SkBitmap bm;
   bm.allocPixels(SkImageInfo::Make(1, 1, ct, kPremul_SkAlphaType));
   bm.eraseColor(input);
-  SkDebugf("expected: %x actual: %x\n", expected, bm.getColor(0, 0));
+  if (reporter->verbose()) {
+      SkDebugf("expected: %x actual: %x\n", expected, bm.getColor(0, 0));
+  }
   REPORTER_ASSERT(reporter, bm.getColor(0, 0) == expected);
 }