Offer single-param version of deepCopyTo -- much easier to migrate to colortypes

BUG=skia:
R=reed@google.com

Author: reed@chromium.org

Review URL: https://codereview.chromium.org/167683006

git-svn-id: http://skia.googlecode.com/svn/trunk@13516 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/GpuBitmapCopyTest.cpp b/tests/GpuBitmapCopyTest.cpp
index 08ceff2..d5485bb 100644
--- a/tests/GpuBitmapCopyTest.cpp
+++ b/tests/GpuBitmapCopyTest.cpp
@@ -161,6 +161,7 @@
 
             // Extract a subset. If this succeeds we will test copying the subset.
             SkBitmap subset;
+#ifdef SK_SUPPORT_DEEPCOPYTO_CONFIG
             const bool extracted = src.extractSubset(&subset, subsetRect);
 
             for (size_t j = 0; j < SK_ARRAY_COUNT(gPairs); j++) {
@@ -228,6 +229,7 @@
                                        true);
                 }
             } // for (size_t j = ...
+#endif
         } // for (size_t i = ...
     } // GrContextFactory::GLContextType
 }