update GM to use #ifdef instead of just #if

gm/androidfallback.cpp

Index: gm/androidfallback.cpp
diff --git a/gm/androidfallback.cpp b/gm/androidfallback.cpp
index 3ef8f1ca5132ebf181a71c1b2ad6d3c4f9e48ade..a4f10369f14b061caa74d36826a1836b0ad1255f 100644
--- a/gm/androidfallback.cpp
+++ b/gm/androidfallback.cpp
@@ -30,7 +30,7 @@ protected:
         paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
         paint.setTextSize(24);
 
-#if SK_BUILD_FOR_ANDROID
+#ifdef SK_BUILD_FOR_ANDROID
         SkPaintOptionsAndroid options = paint.getPaintOptionsAndroid();
         options.setUseFontFallbacks(true);
         paint.setPaintOptionsAndroid(options);
@@ -58,7 +58,7 @@ protected:
         canvas->translate(0, SkIntToScalar(75));
         canvas->drawPosTextH(unicodeStr, strByteLength, posX, 0, paint);
 
-#if SK_BUILD_FOR_ANDROID
+#ifdef SK_BUILD_FOR_ANDROID
         options.setLanguage("ja");
         paint.setPaintOptionsAndroid(options);
 #endif
@@ -80,7 +80,7 @@ private:
 
 //////////////////////////////////////////////////////////////////////////////
 
-#if SK_BUILD_FOR_ANDROID
+#ifdef SK_BUILD_FOR_ANDROID
 DEF_GM( return SkNEW(AndroidFallbackGM); )
 #endif