Add REPORTF test macro.

tests/GpuBitmapCopyTest.cpp

Index: tests/GpuBitmapCopyTest.cpp
diff --git a/tests/GpuBitmapCopyTest.cpp b/tests/GpuBitmapCopyTest.cpp
index 6e1d74dd977c3f942bfd557fc6f74154fbe0db25..8730e8865d7e7372ead633c361b9ebc99fb18510 100644
--- a/tests/GpuBitmapCopyTest.cpp
+++ b/tests/GpuBitmapCopyTest.cpp
@@ -150,21 +150,19 @@ static void TestGpuBitmapCopy(skiatest::Reporter* reporter, GrContextFactory* fa
                 bool success = src.deepCopyTo(&dst, gPairs[j].fConfig);
                 bool expected = gPairs[i].fValid[j] != '0';
                 if (success != expected) {
-                    SkString str;
-                    str.printf("SkBitmap::deepCopyTo from %s to %s. expected %s returned %s",
-                               gConfigName[i], gConfigName[j], boolStr(expected),
-                               boolStr(success));
-                    reporter->reportFailed(str);
+                    REPORTF(reporter,
+                            ("SkBitmap::deepCopyTo from %s to %s. expected %s"
+                             " returned %s", gConfigName[i], gConfigName[j],
+                             boolStr(expected), boolStr(success)));
                 }
 
                 bool canSucceed = src.canCopyTo(gPairs[j].fConfig);
                 if (success != canSucceed) {
-                    SkString str;
-                    str.printf("SkBitmap::deepCopyTo from %s to %s returned %s,"
-                               "but canCopyTo returned %s",
-                               gConfigName[i], gConfigName[j], boolStr(success),
-                               boolStr(canSucceed));
-                    reporter->reportFailed(str);
+                    REPORTF(reporter,
+                            ("SkBitmap::deepCopyTo from %s to %s returned %s,"
+                             "but canCopyTo returned %s", gConfigName[i],
+                             gConfigName[j], boolStr(success),
+                             boolStr(canSucceed)));
                 }
 
                 TestIndividualCopy(reporter, gPairs[j].fConfig, success, src, dst);