command_buffer: Implement path rendering functions for CHROMIUM_path_rendering

gpu/command_buffer/client/gles2_implementation.h

Index: gpu/command_buffer/client/gles2_implementation.h
diff --git a/gpu/command_buffer/client/gles2_implementation.h b/gpu/command_buffer/client/gles2_implementation.h
index c642f9a407681c88d78d3eabafb34d42f7d7d8e4..3446e76ada36d6cd0b9415b0b6bbc2dd555094f6 100644
--- a/gpu/command_buffer/client/gles2_implementation.h
+++ b/gpu/command_buffer/client/gles2_implementation.h
@@ -510,6 +510,7 @@ class GLES2_IMPL_EXPORT GLES2Implementation
   void DeleteFramebuffersStub(GLsizei n, const GLuint* framebuffers);
   void DeleteRenderbuffersStub(GLsizei n, const GLuint* renderbuffers);
   void DeleteTexturesStub(GLsizei n, const GLuint* textures);
+  void DeletePathsCHROMIUMStub(GLuint first_client_id, GLsizei range);
   void DeleteProgramStub(GLsizei n, const GLuint* programs);
   void DeleteShaderStub(GLsizei n, const GLuint* shaders);
   void DeleteVertexArraysOESStub(GLsizei n, const GLuint* arrays);
@@ -593,6 +594,7 @@ class GLES2_IMPL_EXPORT GLES2Implementation
   bool SetCapabilityState(GLenum cap, bool enabled);
 
   IdHandlerInterface* GetIdHandler(int id_namespace) const;
+  RangeIdHandlerInterface* GetRangeIdHandler(int id_namespace) const;
   // IdAllocators for objects that can't be shared among contexts.
   // For now, used only for Queries. TODO(hj.r.chung) Should be added for
   // Framebuffer and Vertex array objects.