Add spellcheck and word suggestion to the prediction service

services/prediction/input_info.cc

+// 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.
+
+#include <new>
+
+#include "services/prediction/input_info.h"
+#include "services/prediction/key_set.h"
+
+namespace prediction {
+
+InputInfo::InputInfo(int input_size) {
+  size = input_size;
+  codepoints = new int[size];
+  x_coordinates = new int[size];
+  y_coordinates = new int[size];
+  pointer_ids = new int[size];
+  times = new int[size];
+}
+
+InputInfo::~InputInfo() {
+  delete[] codepoints;
+  delete[] x_coordinates;
+  delete[] y_coordinates;
+  delete[] pointer_ids;
+  delete[] times;
+}
+
+int* InputInfo::GetCodepoints() {
+  return codepoints;
+}
+
+int* InputInfo::GetXCoordinates() {
+  return x_coordinates;
+}
+
+int* InputInfo::GetYCoordinates() {
+  return y_coordinates;
+}
+
+int* InputInfo::GetPointerIds() {
+  return pointer_ids;
+}
+
+int* InputInfo::GetTimes() {
+  return times;
+}
+
+void InputInfo::ProcessInput(mojo::String& input) {

[APW, 2015/07/23 20:11:28]

You should check that input size is >= size - otherwise boom

[riajiang, 2015/07/31 02:13:04]

It would be equal because of "size = input_size;" in the InputInfo constructor?
I changed how InputInfo works in the keyboard suggestion strip cl. 

+  for (int i = 0; i < size; i++) {
+    int codepoint = (int)input[i];
+    codepoints[i] = codepoint;
+    for (int j = 0; j < KeySet::key_count; j++) {
+      if (KeySet::key_set[j].kcode == tolower(codepoint)) {
+        x_coordinates[i] =
+            KeySet::key_set[j].kx + KeySet::key_set[j].kwidth / 2;
+        y_coordinates[i] =
+            KeySet::key_set[j].ky + KeySet::key_set[j].kheight / 2;
+        pointer_ids[i] = 0;

[APW, 2015/07/23 20:11:28]

shouldn't you set pointer_ids and times all the time outside of this loop?  Not
just when it matches a key?

[riajiang, 2015/07/31 02:13:04]

Done.

+        times[i] = 0;
+        break;
+      }
+    }
+  }
+}
+
+}  // namespace prediction