On Android, skip tiling for all giantbitmap variants.

gm/giantbitmap.cpp

Index: gm/giantbitmap.cpp
diff --git a/gm/giantbitmap.cpp b/gm/giantbitmap.cpp
index 1a78fcfb90044092c7505b1fc85d2d2c97768fe6..de908fef3403c19887b17c6e271bd107df76faa1 100644
--- a/gm/giantbitmap.cpp
+++ b/gm/giantbitmap.cpp
@@ -72,10 +72,14 @@ public:
 
 protected:
     virtual uint32_t onGetFlags() const SK_OVERRIDE {
+#ifdef SK_BUILD_FOR_ANDROID
+        return kSkipTiled_Flag;
+#else
         if (fDoFilter && fDoRotate && fMode != SkShader::kClamp_TileMode) {
             return kSkipTiled_Flag;
         }
         return 0;
+#endif
     }
 
     virtual SkString onShortName() {