Report lost context from GLES2Implementation based on share group state.

content/renderer/pepper/ppb_graphics_3d_impl.cc

Index: content/renderer/pepper/ppb_graphics_3d_impl.cc
diff --git a/content/renderer/pepper/ppb_graphics_3d_impl.cc b/content/renderer/pepper/ppb_graphics_3d_impl.cc
index 24c6513c12fb8119bb4d5ef6293d885dcc83d5e9..4b4453d8aea9b116a017ed91c212127157eb972b 100644
--- a/content/renderer/pepper/ppb_graphics_3d_impl.cc
+++ b/content/renderer/pepper/ppb_graphics_3d_impl.cc
@@ -306,6 +306,10 @@ void PPB_Graphics3D_Impl::OnGpuControlLostContext() {
                             weak_ptr_factory_.GetWeakPtr()));
 }
 
+void PPB_Graphics3D_Impl::OnGpuControlLostContextMaybeReentrant() {
+  // No internal state to update on lost context.
+}
+
 void PPB_Graphics3D_Impl::OnSwapBuffers() {
   if (HasPendingSwap()) {
     // If we're off-screen, no need to trigger and wait for compositing.