Rebind EGL context to flush driver caches.

mojo/gpu/mojo_gles2_impl_autogen.cc

Index: mojo/gpu/mojo_gles2_impl_autogen.cc
diff --git a/mojo/gpu/mojo_gles2_impl_autogen.cc b/mojo/gpu/mojo_gles2_impl_autogen.cc
index 6351a07a697be4f9a696b5f31e9c2bfb55cf383d..f677723d28dfe410015790ca6a124a72b629f5d8 100644
--- a/mojo/gpu/mojo_gles2_impl_autogen.cc
+++ b/mojo/gpu/mojo_gles2_impl_autogen.cc
@@ -1638,6 +1638,9 @@ void MojoGLES2Impl::ScheduleOverlayPlaneCHROMIUM(GLint plane_z_order,
 void MojoGLES2Impl::SwapInterval(GLint interval) {
   NOTREACHED() << "Unimplemented SwapInterval.";
 }
+void MojoGLES2Impl::FlushDriverCachesCHROMIUM() {
+  NOTREACHED() << "Unimplemented FlushDriverCachesCHROMIUM.";
+}
 void MojoGLES2Impl::MatrixLoadfCHROMIUM(GLenum matrixMode, const GLfloat* m) {
   NOTREACHED() << "Unimplemented MatrixLoadfCHROMIUM.";
 }