[WIP] Add support for Android SuggestionSpans when editing text

third_party/WebKit/public/web/WebInputMethodController.h

 // Copyright 2016 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.
 
 #ifndef WebInputMethodController_h
 #define WebInputMethodController_h
 
 #include "../platform/WebTextInputInfo.h"
+
 #include "WebCompositionUnderline.h"
 #include "WebTextInputType.h"
+#include "WebTextSuggestionInfo.h"
 #include "WebWidget.h"
 
 namespace blink {
 
 class WebString;
 template <typename T>
 class WebVector;
 
 class WebInputMethodController {
  public:
@@ skipping 18 matching lines @@
   // any, inserting the specified text, and moving the caret according to
   // relativeCaretPosition.
   virtual bool commitText(const WebString& text,
                           const WebVector<WebCompositionUnderline>& underlines,
                           int relativeCaretPosition) = 0;
 
   // Called to inform the controller to confirm an ongoing composition.
   virtual bool finishComposingText(
       ConfirmCompositionBehavior selectionBehavior) = 0;
 
+  virtual void applySuggestionReplacement(int documentMarkerID,
+                                          int suggestionIndex) = 0;
+  virtual void deleteSuggestionHighlight() = 0;
+  virtual void suggestionMenuClosed() = 0;
+
   // Returns information about the current text input of this controller. Note
   // that this query can be expensive for long fields, as it returns the
   // plain-text representation of the current editable element. Consider using
   // the lighter-weight textInputType() when appropriate.
   virtual WebTextInputInfo textInputInfo() { return WebTextInputInfo(); }
 
   // Returns the type of current text input of this controller.
   virtual WebTextInputType textInputType() { return WebTextInputTypeNone; }
+
+  // Returns a list of text suggestion spans under the selection caret
+  // (if the selection is not of type caret, returns an empty vector)
+  virtual WebVector<WebTextSuggestionInfo>
+  getTextSuggestionInfosUnderCaret() = 0;

[esprehn, 2017/01/31 22:41:35]

We shouldn't need this or prepareForTextSuggestionMenuToBeShown.

[rlanday, 2017/01/31 23:30:10]

Because everything's going to be in mojo? Ok

+
+  // Called to let the controller prepare for a text suggestion menu to be shown
+  // (e.g. by hiding the selection caret)
+  virtual void prepareForTextSuggestionMenuToBeShown() = 0;
 };
 
 }  // namespace blink
 #endif