command_buffer: Implement path rendering functions for CHROMIUM_path_rendering

gpu/command_buffer/tests/gl_manager.cc

Index: gpu/command_buffer/tests/gl_manager.cc
diff --git a/gpu/command_buffer/tests/gl_manager.cc b/gpu/command_buffer/tests/gl_manager.cc
index 6e7d4b47ed74d1f6f41e1929922526e703d83fbe..bf0a1bfde2d7d9b054d4c3451a97d7daa7903d19 100644
--- a/gpu/command_buffer/tests/gl_manager.cc
+++ b/gpu/command_buffer/tests/gl_manager.cc
@@ -86,6 +86,7 @@ scoped_refptr<gfx::GLContext>* GLManager::base_context_;
 
 GLManager::Options::Options()
     : size(4, 4),
+      stencil_size(-1),
       share_group_manager(NULL),
       share_mailbox_manager(NULL),
       virtual_manager(NULL),
@@ -164,6 +165,7 @@ void GLManager::Initialize(const GLManager::Options& options) {
   attrib_helper.blue_size = 8;
   attrib_helper.alpha_size = 8;
   attrib_helper.depth_size = 16;
+  attrib_helper.stencil_size = options.stencil_size;
   attrib_helper.Serialize(&attribs);
 
   if (!context_group) {