predictors: Introduce GlowplugPredictor.

chrome/browser/predictors/glowplug_predictor.cc

+// Copyright 2017 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 "chrome/browser/predictors/glowplug_predictor.h"
+
+#include "base/memory/ptr_util.h"
+#include "chrome/browser/predictors/resource_prefetch_predictor.h"
+
+namespace predictors {
+
+GlowplugPredictor::GlowplugPredictor(const GlowplugPredictorConfig& config,
+                                     Profile* profile) {
+  resource_prefetch_predictor_ = base::WrapUnique<ResourcePrefetchPredictor>(

[alexilin, 2017/05/11 16:53:12]

nit: why not MakeUnique?

[Benoit L, 2017/05/12 12:12:52]

No good reason, used that to make ResourcePrefetchPredictor constructor private
during iteration.

Done.

+      new ResourcePrefetchPredictor(config, profile));
+}
+
+GlowplugPredictor::~GlowplugPredictor() = default;
+
+void GlowplugPredictor::StartPrefetching(const GURL& main_frame_url,
+                                         PrefetchOrigin origin) {
+  resource_prefetch_predictor_->StartPrefetching(main_frame_url, origin);
+}
+
+void GlowplugPredictor::StopPrefetching(const GURL& main_frame_url) {
+  resource_prefetch_predictor_->StopPrefetching(main_frame_url);
+}
+
+ResourcePrefetchPredictor* GlowplugPredictor::resource_prefetch_predictor()
+    const {
+  return resource_prefetch_predictor_.get();
+}
+
+void GlowplugPredictor::Shutdown() {
+  resource_prefetch_predictor_->Shutdown();
+}
+
+}  // namespace predictors