Add a GrLayerCache to GrContext

https://codereview.chromium.org/217343006/



git-svn-id: http://skia.googlecode.com/svn/trunk@14038 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/gpu.gypi b/gyp/gpu.gypi
index b2f5373..5eb9a79 100644
--- a/gyp/gpu.gypi
+++ b/gyp/gpu.gypi
@@ -82,6 +82,8 @@
       '<(skia_src_path)/gpu/GrIndexBuffer.h',
       '<(skia_src_path)/gpu/GrInOrderDrawBuffer.cpp',
       '<(skia_src_path)/gpu/GrInOrderDrawBuffer.h',
+      '<(skia_src_path)/gpu/GrLayerCache.cpp',
+      '<(skia_src_path)/gpu/GrLayerCache.h',
       '<(skia_src_path)/gpu/GrMemoryPool.cpp',
       '<(skia_src_path)/gpu/GrMemoryPool.h',
       '<(skia_src_path)/gpu/GrOrderedSet.h',