Add testing for Rectanizer-derived classes

This in preparation for expanding the Rectanizer API for removing rects and adding a new derived class

R=jvanverth@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/304313002

git-svn-id: http://skia.googlecode.com/svn/trunk@14972 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/tests.gypi b/gyp/tests.gypi
index 68c179d..90d7c1f 100644
--- a/gyp/tests.gypi
+++ b/gyp/tests.gypi
@@ -87,6 +87,7 @@
     '../tests/GifTest.cpp',
     '../tests/GpuColorFilterTest.cpp',
     '../tests/GpuDrawPathTest.cpp',
+    '../tests/GpuRectanizerTest.cpp',
     '../tests/GrBinHashKeyTest.cpp',
     '../tests/GrContextFactoryTest.cpp',
     '../tests/GrDrawTargetTest.cpp',