Move oval and rect renderer includes to private interface

R=bsalomon@google.com, robertphillips@google.com

Review URL: https://codereview.chromium.org/23513016

git-svn-id: http://skia.googlecode.com/svn/trunk@11132 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 4be77f8..b6555c4 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -12,6 +12,7 @@
 #include "effects/GrSingleTextureEffect.h"
 #include "effects/GrConfigConversionEffect.h"
 
+#include "GrAARectRenderer.h"
 #include "GrBufferAllocPool.h"
 #include "GrGpu.h"
 #include "GrDrawTargetCaps.h"