Respect the order of input messages from browser to renderer

content/common/input_messages.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // IPC messages for input events and other messages that require processing in
 // order relative to input events.
 // Multiply-included message file, hence no include guard.
 
 #include "base/strings/string16.h"
 #include "build/build_config.h"
@@ skipping 133 matching lines @@
     int /* start */,
     int /* end */,
     std::vector<blink::WebCompositionUnderline> /* underlines */)
 
 // Deletes the current selection plus the specified number of characters before
 // and after the selection or caret.
 IPC_MESSAGE_ROUTED2(InputMsg_ExtendSelectionAndDelete,
                     int /* before */,
                     int /* after */)
 
+// Selects between the given start and end offsets in the currently focused
+// editable field.
+IPC_MESSAGE_ROUTED2(InputMsg_SetEditableSelectionOffsets,
+                    int /* start */,
+                    int /* end */)
+
 // This message sends a string being composed with an input method.
 IPC_MESSAGE_ROUTED5(
     InputMsg_ImeSetComposition,
     base::string16, /* text */
     std::vector<blink::WebCompositionUnderline>, /* underlines */
     gfx::Range /* replacement_range */,
     int, /* selectiont_start */
     int /* selection_end */)
 
 // This message confirms an ongoing composition.
@@ skipping 131 matching lines @@
 // This IPC message sends the character bounds after every composition change
 // to always have correct bound info.
 IPC_MESSAGE_ROUTED2(InputHostMsg_ImeCompositionRangeChanged,
                     gfx::Range /* composition range */,
                     std::vector<gfx::Rect> /* character bounds */)
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent InputMsg, then ifdefs for platform specific InputMsg, then
 // platform independent InputHostMsg, then ifdefs for platform specific
 // InputHostMsg.