Add spellcheck and word suggestion to the prediction service

services/prediction/prediction_service_impl.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 "mojo/application/application_runner_chromium.h"
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
+#include "services/prediction/dictionary_service.h"
 #include "services/prediction/prediction_service_impl.h"
+#include "services/prediction/touch_position_correction.h"
 
 namespace prediction {
 
 PredictionServiceImpl::PredictionServiceImpl(
     mojo::InterfaceRequest<PredictionService> request)
     : strong_binding_(this, request.Pass()) {
+  touch_position_correction = new TouchPositionCorrection();
+
+  // Hardcoded qwerty keyboard proximity settings, parameters are:
+  // locale, grid_width, grid_height, min_width, height, most_common_key_width,
+  // most_common_key_height, sorted_keys, touch_position_correction
+  proximity_settings = new ProximityInfoService("en", 32, 16, 348, 174, 29, 58,
+                                                touch_position_correction);
+
+  dictionary_service = new DictionaryService();
 }
 
 PredictionServiceImpl::~PredictionServiceImpl() {
+  delete dictionary_service;
+  delete touch_position_correction;
+  delete proximity_settings;
 }
 
 // PredictionService implementation
-void PredictionServiceImpl::SetSettings(SettingsPtr settings) {
-  stored_settings_.correction_enabled = settings->correction_enabled;
-  stored_settings_.block_potentially_offensive =
-      settings->block_potentially_offensive;
-  stored_settings_.space_aware_gesture_enabled =
-      settings->space_aware_gesture_enabled;
-}
-
-// only predict "cat" no matter what prediction_info
-// has for now
 void PredictionServiceImpl::GetPredictionList(
     PredictionInfoPtr prediction_info,
     const GetPredictionListCallback& callback) {
-  mojo::String cat = "cat";
-  mojo::Array<mojo::String> prediction_list;
-  prediction_list.push_back(cat);
+  mojo::Array<mojo::String> prediction_list =
+      dictionary_service->GetDictionarySuggestion(prediction_info.Pass(),
+                                                  proximity_settings);
   callback.Run(prediction_list.Pass());
 }
 
 PredictionServiceDelegate::PredictionServiceDelegate() {
 }
 
 PredictionServiceDelegate::~PredictionServiceDelegate() {
 }
 
 // mojo::ApplicationDelegate implementation
@@ skipping 10 matching lines @@
   new PredictionServiceImpl(request.Pass());
 }
 
 }  // namespace prediction
 
 MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(
       new prediction::PredictionServiceDelegate());
   return runner.Run(application_request);
 }