Add spellcheck and word suggestion to the prediction service

services/prediction/touch_position_correction.h

+// Copyright 2015 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 SERVICES_PREDICTION_TOUCH_POSITION_CORRECTION_H_
+#define SERVICES_PREDICTION_TOUCH_POSITION_CORRECTION_H_
+
+#include "mojo/services/prediction/public/interfaces/prediction.mojom.h"
+
+// NOTE: This class has been translated to C++ and modified from the Android
+// Open Source Project. Specifically from some functions of the following file:
+// https://android.googlesource.com/platform/packages/inputmethods/LatinIME/+/
+// android-5.1.1_r8/java/src/com/android/inputmethod/keyboard/internal/
+// TouchPositionCorrection.java
+
+namespace prediction {
+
+class TouchPositionCorrection {
+ public:
+  TouchPositionCorrection();
+  ~TouchPositionCorrection();
+
+  bool IsValid();
+
+  int GetRows();
+  float GetX(const int row);
+  float GetY(const int row);
+  float GetRadius(const int row);
+
+ private:
+  static const int TOUCH_POSITION_CORRECTION_RECORD_SIZE;
+
+  bool enabled;
+  float* xs;
+  float* ys;
+  float* radii;
+};  // class TouchPositionCorrection
+
+}  // namespace prediction
+
+#endif  // SERVICES_PREDICTION_TOUCH_POSITION_CORRECTION_H_