Fix GPU-less build.

Review URL: https://codereview.appspot.com/6478046

git-svn-id: http://skia.googlecode.com/svn/trunk@5228 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/GpuBitmapCopyTest.cpp b/tests/GpuBitmapCopyTest.cpp
index df05f40..0389048 100644
--- a/tests/GpuBitmapCopyTest.cpp
+++ b/tests/GpuBitmapCopyTest.cpp
@@ -6,6 +6,8 @@
  * found in the LICENSE file.
  */
 
+#if SK_SUPPORT_GPU
+
 #include "GrContext.h"
 #include "SkBitmap.h"
 #include "SkGpuDevice.h"
@@ -106,3 +108,5 @@
 
 #include "TestClassDef.h"
 DEFINE_GPUTESTCLASS("GpuBitmapCopy", TestGpuBitmapCopyClass, TestGpuBitmapCopy)
+
+#endif