command_buffer: Implement glGetStringi for GL ES 3.0

gpu/command_buffer/client/gles2_c_lib_autogen.h

Index: gpu/command_buffer/client/gles2_c_lib_autogen.h
diff --git a/gpu/command_buffer/client/gles2_c_lib_autogen.h b/gpu/command_buffer/client/gles2_c_lib_autogen.h
index 5cafe6e6920819e898ede8360929f3b470f72319..e35f6d13d0508900e65dbcb8cf015727ad8fed5a 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -522,6 +522,9 @@ void GL_APIENTRY GLES2GetShaderSource(GLuint shader,
 const GLubyte* GL_APIENTRY GLES2GetString(GLenum name) {
   return gles2::GetGLContext()->GetString(name);
 }
+const GLubyte* GL_APIENTRY GLES2GetStringi(GLenum name, GLuint index) {
+  return gles2::GetGLContext()->GetStringi(name, index);
+}
 void GL_APIENTRY GLES2GetSynciv(GLsync sync,
                                 GLenum pname,
                                 GLsizei bufsize,
@@ -2100,6 +2103,9 @@ extern const NameToFunc g_gles2_function_table[] = {
         "glGetString", reinterpret_cast<GLES2FunctionPointer>(glGetString),
     },
     {
+        "glGetStringi", reinterpret_cast<GLES2FunctionPointer>(glGetStringi),
+    },
+    {
         "glGetSynciv", reinterpret_cast<GLES2FunctionPointer>(glGetSynciv),
     },
     {