Check whether font creation is failed to avoid segment fault.

tests/FontHostStreamTest.cpp

Index: tests/FontHostStreamTest.cpp
diff --git a/tests/FontHostStreamTest.cpp b/tests/FontHostStreamTest.cpp
index 4fd88cc4da9a3ee57d6a07e62da9d665971b5975..b2dc9e7c1c1b9d7b31a29b558648833beba0fc05 100644
--- a/tests/FontHostStreamTest.cpp
+++ b/tests/FontHostStreamTest.cpp
@@ -72,7 +72,13 @@ static void test_fontHostStream(skiatest::Reporter* reporter) {
         paint.setColor(SK_ColorGRAY);
         paint.setTextSize(SkIntToScalar(30));
 
-        paint.setTypeface(SkTypeface::CreateFromName("Georgia", SkTypeface::kNormal))->unref();
+        SkTypeface* font =

[bungeman-skia, 2013/05/03 14:11:41]

I think this just needs to be

SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Georgia",
SkTypeface::kNormal)))

The possibility of any font creation function returning NULL is somewhat of a
new experimental thing. We're currently working out the details.

+            SkTypeface::CreateFromName("Georgia", SkTypeface::kNormal);
+        if (NULL == font) {
+            printf("create font failed.\n");
+            return;
+        }
+        paint.setTypeface(font)->unref();
 
         SkIRect origRect = SkIRect::MakeWH(64, 64);
         SkBitmap origBitmap;