Require ACK for editor-related changes not originating from browser.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index c0f6bea6b21acf4bf9e0ea01a1d7bc7e6dd8a7b9..965677e9c9071b5e551a6f1f8b3e956552ffeb8c 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6543,6 +6543,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE_GESTURE_TAP_HIGHLIGHTING_DESCRIPTION" desc="Description for the flag to turn on gesture tap highlighting">
         Enable the experimental gesture tap highlight implementation.
       </message>
+      <message name="IDS_FLAGS_ENABLE_ORDERED_IME_PROCESSING_NAME" desc="Title for the flag to enable ordered IME processing">
+        Ordered IME processing
+      </message>
+      <message name="IDS_FLAGS_ENABLE_ORDERED_IME_PROCESSING_DESCRIPTION" desc="Description for the flag to enable ordered IME processing">
+        Enables ordered handling IME events. Some changes that relate to IME on on the renderer side requires acknowledgement from the browser process. If IME events are sent to the renderer while there are outstanding acknowledgements, the IME event will be dropped.
+      </message>
       <message name="IDS_FLAGS_ENABLE_SMOOTH_SCROLLING_NAME" desc="Title for the flag to turn on smooth scrolling">
         Smooth Scrolling
       </message>