customtabs: Send time to first contentful paint to the caller.

chrome/browser/page_load_metrics/page_load_metrics_initialize.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 "chrome/browser/page_load_metrics/page_load_metrics_initialize.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
+#if defined(OS_ANDROID)
+#include "chrome/browser/page_load_metrics/observers/android_page_load_metrics_observer.h"
+#endif  // OS_ANDROID
 #include "chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/document_write_page_load_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/from_gws_page_load_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/google_captcha_observer.h"
 #include "chrome/browser/page_load_metrics/observers/https_engagement_page_load_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h"
 #include "chrome/browser/page_load_metrics/observers/stale_while_revalidate_metrics_observer.h"
 #include "chrome/browser/prerender/prerender_contents.h"
@@ skipping 10 matching lines @@
 
 class PageLoadMetricsEmbedder
     : public page_load_metrics::PageLoadMetricsEmbedderInterface {
  public:
   explicit PageLoadMetricsEmbedder(content::WebContents* web_contents);
   ~PageLoadMetricsEmbedder() override;
 
   // page_load_metrics::PageLoadMetricsEmbedderInterface:
   bool IsPrerendering(content::WebContents* web_contents) override;
   bool IsNewTabPageUrl(const GURL& url) override;
-  void RegisterObservers(page_load_metrics::PageLoadTracker* tracker) override;
+  void RegisterObservers(page_load_metrics::PageLoadTracker* tracker,
+                         content::WebContents* web_contents) override;
 
  private:
   content::WebContents* const web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(PageLoadMetricsEmbedder);
 };
 
 PageLoadMetricsEmbedder::PageLoadMetricsEmbedder(
     content::WebContents* web_contents)
     : web_contents_(web_contents) {}
 
 PageLoadMetricsEmbedder::~PageLoadMetricsEmbedder() {}
 
 void PageLoadMetricsEmbedder::RegisterObservers(
-    page_load_metrics::PageLoadTracker* tracker) {
+    page_load_metrics::PageLoadTracker* tracker,
+    content::WebContents* web_contents) {
   // These classes are owned by the metrics.
   tracker->AddObserver(base::WrapUnique(new AbortsPageLoadMetricsObserver()));
   tracker->AddObserver(base::WrapUnique(new CorePageLoadMetricsObserver()));
   tracker->AddObserver(base::WrapUnique(
       new data_reduction_proxy::DataReductionProxyMetricsObserver()));
   tracker->AddObserver(base::WrapUnique(new FromGWSPageLoadMetricsObserver()));
   tracker->AddObserver(
       base::WrapUnique(new google_captcha_observer::GoogleCaptchaObserver()));
   // TODO(ricea): Remove this in April 2016 or before. crbug.com/348877
   tracker->AddObserver(
       base::WrapUnique(new chrome::StaleWhileRevalidateMetricsObserver()));
   tracker->AddObserver(
       base::WrapUnique(new DocumentWritePageLoadMetricsObserver()));
   tracker->AddObserver(
       base::WrapUnique(new ServiceWorkerPageLoadMetricsObserver()));
   tracker->AddObserver(
       base::WrapUnique(new HttpsEngagementPageLoadMetricsObserver()));
+#if defined(OS_ANDROID)
+  tracker->AddObserver(
+      base::WrapUnique(new AndroidPageLoadMetricsObserver(web_contents)));
+#endif  // OS_ANDROID
 }
 
 bool PageLoadMetricsEmbedder::IsPrerendering(
     content::WebContents* web_contents) {
   return prerender::PrerenderContents::FromWebContents(web_contents) != nullptr;
 }
 
 bool PageLoadMetricsEmbedder::IsNewTabPageUrl(const GURL& url) {
   Profile* profile =
       Profile::FromBrowserContext(web_contents_->GetBrowserContext());
   if (!profile)
     return false;
   return search::IsInstantNTPURL(url, profile);
 }
 
 }  // namespace
 
 void InitializePageLoadMetricsForWebContents(
     content::WebContents* web_contents) {
   page_load_metrics::MetricsWebContentsObserver::CreateForWebContents(
       web_contents,
       base::WrapUnique(new PageLoadMetricsEmbedder(web_contents)));
 }
 
 }  // namespace chrome