Track TextInputState from multiple RenderWidgets in TextInputManager (Mac)

content/browser/renderer_host/text_input_manager.cc

Index: content/browser/renderer_host/text_input_manager.cc
diff --git a/content/browser/renderer_host/text_input_manager.cc b/content/browser/renderer_host/text_input_manager.cc
index faee51cc3cb9aad16e0cc340afe87ed2c3f54296..dc0b5585d208642f8b690c41776b9b307f972b3b 100644
--- a/content/browser/renderer_host/text_input_manager.cc
+++ b/content/browser/renderer_host/text_input_manager.cc
@@ -21,6 +21,9 @@ bool AreDifferentTextInputStates(const content::TextInputState& old_state,
   return old_state.type != new_state.type || old_state.mode != new_state.mode ||
          old_state.flags != new_state.flags ||
          old_state.can_compose_inline != new_state.can_compose_inline;
+#elif defined(OS_MACOSX)
+  return old_state.type != new_state.type ||
+         old_state.can_compose_inline != new_state.can_compose_inline;
 #else
   // TODO(ekaramad): Implement the logic for other platforms (crbug.com/578168).
   NOTREACHED();