fix return value for make_bitmap



git-svn-id: http://skia.googlecode.com/svn/trunk@1797 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleBitmapRect.cpp b/samplecode/SampleBitmapRect.cpp
index 08b8a5a..3a93ba7 100644
--- a/samplecode/SampleBitmapRect.cpp
+++ b/samplecode/SampleBitmapRect.cpp
@@ -19,7 +19,7 @@
 
 #include "SkGpuDevice.h"
 
-static SkDevice* make_bitmap(SkBitmap* bitmap, GrContext* ctx) {
+static void make_bitmap(SkBitmap* bitmap, GrContext* ctx) {
     SkCanvas canvas;
 
     if (ctx) {
@@ -59,6 +59,8 @@
     }
     
     virtual void onDrawContent(SkCanvas* canvas) {
+        GrContext* ctx = NULL;//SampleCode::GetGr();
+
         const SkIRect src[] = {
             { 0, 0, 32, 32 },
             { 0, 0, 80, 80 },
@@ -68,10 +70,10 @@
 
         SkPaint paint;
         paint.setStyle(SkPaint::kStroke_Style);
-        paint.setColor(SK_ColorGREEN);
+        paint.setColor(ctx ? SK_ColorGREEN : SK_ColorYELLOW);
 
         SkBitmap bitmap;
-        make_bitmap(&bitmap, NULL /*SampleCode::GetGr()*/);
+        make_bitmap(&bitmap, ctx);
 
         SkRect dstR = { 0, 200, 128, 380 };