[WebLayer] Add PrerenderProcessorImplDelegate imlpementation.

Bug: 1096088
Change-Id: I5e95537b9d194c83bbb483dc38a19358437c8a1c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2339993
Commit-Queue: Mugdha Lakhani <nator@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#796274}

weblayer/BUILD.gn

@@ -210,6 +210,8 @@ source_set("weblayer_lib_base") {
     "browser/no_state_prefetch/prerender_manager_delegate_impl.h",
     "browser/no_state_prefetch/prerender_manager_factory.cc",
     "browser/no_state_prefetch/prerender_manager_factory.h",
+    "browser/no_state_prefetch/prerender_processor_impl_delegate_impl.cc",
+    "browser/no_state_prefetch/prerender_processor_impl_delegate_impl.h",
     "browser/page_load_metrics_initialize.cc",
     "browser/page_load_metrics_initialize.h",
     "browser/password_manager_driver_factory.cc",

weblayer/browser/no_state_prefetch/prerender_processor_impl_delegate_impl.cc

+// Copyright 2020 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 "weblayer/browser/no_state_prefetch/prerender_processor_impl_delegate_impl.h"
+
+#include "components/prerender/browser/prerender_link_manager.h"
+#include "content/public/browser/browser_context.h"
+#include "weblayer/browser/no_state_prefetch/prerender_link_manager_factory.h"
+
+namespace weblayer {
+
+prerender::PrerenderLinkManager*
+PrerenderProcessorImplDelegateImpl::GetPrerenderLinkManager(
+    content::BrowserContext* browser_context) {
+  return PrerenderLinkManagerFactory::GetForBrowserContext(browser_context);
+}
+
+}  // namespace weblayer

weblayer/browser/no_state_prefetch/prerender_processor_impl_delegate_impl.h

+// Copyright 2020 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 WEBLAYER_BROWSER_NO_STATE_PREFETCH_PRERENDER_PROCESSOR_IMPL_DELEGATE_IMPL_H_
+#define WEBLAYER_BROWSER_NO_STATE_PREFETCH_PRERENDER_PROCESSOR_IMPL_DELEGATE_IMPL_H_
+
+#include "components/prerender/browser/prerender_processor_impl_delegate.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace prerender {
+class PrerenderLinkManager;
+}
+
+namespace weblayer {
+
+class PrerenderProcessorImplDelegateImpl
+    : public prerender::PrerenderProcessorImplDelegate {
+ public:
+  PrerenderProcessorImplDelegateImpl() = default;
+  ~PrerenderProcessorImplDelegateImpl() override = default;
+
+  // prerender::PrerenderProcessorImplDelegate overrides,
+  prerender::PrerenderLinkManager* GetPrerenderLinkManager(
+      content::BrowserContext* browser_context) override;
+};
+
+}  // namespace weblayer
+
+#endif  // WEBLAYER_BROWSER_NO_STATE_PREFETCH_PRERENDER_PROCESSOR_IMPL_DELEGATE_IMPL_H_