[Feat] (MG_Remote, P5b sync): migrate fence lifecycle and wait replies to the apply thread

MobileGL/MG_Test/Wire/RemoteClientTest.cpp

@@ -177,8 +177,8 @@ namespace {
 TEST(RemoteEmitTable, TheThreeClassesPartitionAllSeventyOneSlots) {
     // P5 baseline five + f1 eleven + i1 seven + t2 six emitted slots.
     EXPECT_EQ(LocallyAnsweredSlotCount(), 2u);
-    EXPECT_EQ(ImplementedVerbCount(), 49u);
-    EXPECT_EQ(UnmigratedSlotCount(), 20u);
+    EXPECT_EQ(ImplementedVerbCount(), 54u);
+    EXPECT_EQ(UnmigratedSlotCount(), 15u);
     EXPECT_EQ(LocallyAnsweredSlotCount() + ImplementedVerbCount() + UnmigratedSlotCount(),
               kRemoteEmitSlotCount);
 }