Move GrTextureAccess decl/defn to separate files

Review URL: https://codereview.appspot.com/6500104/



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@5482 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu.gypi b/gpu.gypi
index cdaa7e7..b9ea739 100644
--- a/gpu.gypi
+++ b/gpu.gypi
@@ -35,6 +35,7 @@
       '<(skia_include_path)/gpu/GrSurface.h',
       '<(skia_include_path)/gpu/GrTextContext.h',
       '<(skia_include_path)/gpu/GrTexture.h',
+      '<(skia_include_path)/gpu/GrTextureAccess.h',
       '<(skia_include_path)/gpu/GrTypes.h',
       '<(skia_include_path)/gpu/GrUserConfig.h',
 
@@ -118,6 +119,7 @@
       '<(skia_src_path)/gpu/GrTextStrike.h',
       '<(skia_src_path)/gpu/GrTextStrike_impl.h',
       '<(skia_src_path)/gpu/GrTexture.cpp',
+      '<(skia_src_path)/gpu/GrTextureAccess.cpp',
       '<(skia_src_path)/gpu/GrTHashCache.h',
       '<(skia_src_path)/gpu/GrTLList.h',
       '<(skia_src_path)/gpu/GrVertexBuffer.h',