[Command buffer] Enable primitive restart for WebGL 2

ui/gl/gl_bindings_autogen_gl.h

Index: ui/gl/gl_bindings_autogen_gl.h
diff --git a/ui/gl/gl_bindings_autogen_gl.h b/ui/gl/gl_bindings_autogen_gl.h
index 088f0a8c26eb504c7b4f455988dabe7dad02ea64..28393dca3f4abf7729f6e5ca8e43138cc63d72ed 100644
--- a/ui/gl/gl_bindings_autogen_gl.h
+++ b/ui/gl/gl_bindings_autogen_gl.h
@@ -637,6 +637,7 @@ typedef void(GL_BINDING_CALL* glPointParameteriProc)(GLenum pname, GLint param);
 typedef void(GL_BINDING_CALL* glPolygonOffsetProc)(GLfloat factor,
                                                    GLfloat units);
 typedef void(GL_BINDING_CALL* glPopGroupMarkerEXTProc)(void);
+typedef void(GL_BINDING_CALL* glPrimitiveRestartIndexProc)(GLuint index);
 typedef void(GL_BINDING_CALL* glProgramBinaryProc)(GLuint program,
                                                    GLenum binaryFormat,
                                                    const GLvoid* binary,
@@ -1306,6 +1307,7 @@ struct ProcsGL {
   glPointParameteriProc glPointParameteriFn;
   glPolygonOffsetProc glPolygonOffsetFn;
   glPopGroupMarkerEXTProc glPopGroupMarkerEXTFn;
+  glPrimitiveRestartIndexProc glPrimitiveRestartIndexFn;
   glProgramBinaryProc glProgramBinaryFn;
   glProgramParameteriProc glProgramParameteriFn;
   glProgramPathFragmentInputGenNVProc glProgramPathFragmentInputGenNVFn;
@@ -1964,6 +1966,7 @@ class GL_EXPORT GLApi {
   virtual void glPointParameteriFn(GLenum pname, GLint param) = 0;
   virtual void glPolygonOffsetFn(GLfloat factor, GLfloat units) = 0;
   virtual void glPopGroupMarkerEXTFn(void) = 0;
+  virtual void glPrimitiveRestartIndexFn(GLuint index) = 0;
   virtual void glProgramBinaryFn(GLuint program,
                                  GLenum binaryFormat,
                                  const GLvoid* binary,
@@ -2601,6 +2604,8 @@ class GL_EXPORT GLApi {
 #define glPointParameteri ::gfx::g_current_gl_context->glPointParameteriFn
 #define glPolygonOffset ::gfx::g_current_gl_context->glPolygonOffsetFn
 #define glPopGroupMarkerEXT ::gfx::g_current_gl_context->glPopGroupMarkerEXTFn
+#define glPrimitiveRestartIndex \
+  ::gfx::g_current_gl_context->glPrimitiveRestartIndexFn
 #define glProgramBinary ::gfx::g_current_gl_context->glProgramBinaryFn
 #define glProgramParameteri ::gfx::g_current_gl_context->glProgramParameteriFn
 #define glProgramPathFragmentInputGenNV \