Mojo: Rename (Mojo)WaitFlagsState -> (Mojo)HandleSignalsState.

mojo/public/c/system/types.h

Index: mojo/public/c/system/types.h
diff --git a/mojo/public/c/system/types.h b/mojo/public/c/system/types.h
index 26c687785e7fb70bd51db7cc2eb166565977ed3b..e992d110e3aa087f665c63c8e4d087e34a303554 100644
--- a/mojo/public/c/system/types.h
+++ b/mojo/public/c/system/types.h
@@ -165,13 +165,12 @@ const MojoHandleSignals MOJO_HANDLE_SIGNAL_WRITABLE = 1 << 1;
 // TODO(vtl): Add out parameters with this to MojoWait/MojoWaitMany.
 // Note: This struct is not extensible (and only has 32-bit quantities), so it's
 // 32-bit-aligned.
-// TODO(vtl): Rename this to MojoHandleSignalsState.
 MOJO_COMPILE_ASSERT(MOJO_ALIGNOF(int32_t) == 4, int32_t_has_weird_alignment);
-struct MOJO_ALIGNAS(4) MojoWaitFlagsState {
+struct MOJO_ALIGNAS(4) MojoHandleSignalsState {
   MojoHandleSignals satisfied_signals;
   MojoHandleSignals satisfiable_signals;
 };
-MOJO_COMPILE_ASSERT(sizeof(MojoWaitFlagsState) == 8,
-                    MojoWaitFlagsState_has_wrong_size);
+MOJO_COMPILE_ASSERT(sizeof(MojoHandleSignalsState) == 8,
+                    MojoHandleSignalsState_has_wrong_size);
 
 #endif  // MOJO_PUBLIC_C_SYSTEM_TYPES_H_