| Index: chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.cc | 
| diff --git a/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.cc b/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.cc | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..274a5638340ee77bfd3c1f9b3c3fb11563c9d1bf | 
| --- /dev/null | 
| +++ b/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.cc | 
| @@ -0,0 +1,150 @@ | 
| +// Copyright 2016 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/observers/protocol_page_load_metrics_observer.h" | 
| + | 
| +#include "chrome/browser/page_load_metrics/page_load_metrics_util.h" | 
| + | 
| +page_load_metrics::PageLoadMetricsObserver::ObservePolicy | 
| +ProtocolPageLoadMetricsObserver::OnCommit( | 
| +    content::NavigationHandle* navigation_handle) { | 
| +  connection_info_ = navigation_handle->GetConnectionInfo(); | 
| +  return CONTINUE_OBSERVING; | 
| +} | 
| + | 
| +void ProtocolPageLoadMetricsObserver::OnFirstContentfulPaint( | 
| +    const page_load_metrics::PageLoadTiming& timing, | 
| +    const page_load_metrics::PageLoadExtraInfo& extra_info) { | 
| +  switch (connection_info_) { | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY2: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY3: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_14: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_15: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP0_9: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_0: | 
| +    case net::HttpResponseInfo::NUM_OF_CONNECTION_INFOS: | 
| +      return; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_1: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H1.PaintTiming." | 
| +          "ParseStartToFirstContentfulPaint", | 
| +          timing.first_contentful_paint.value() - timing.parse_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP2: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H2.PaintTiming." | 
| +          "ParseStartToFirstContentfulPaint", | 
| +          timing.first_contentful_paint.value() - timing.parse_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_QUIC: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.QUIC.PaintTiming." | 
| +          "ParseStartToFirstContentfulPaint", | 
| +          timing.first_contentful_paint.value() - timing.parse_start.value()); | 
| +      break; | 
| +  } | 
| +} | 
| + | 
| +void ProtocolPageLoadMetricsObserver::OnFirstMeaningfulPaint( | 
| +    const page_load_metrics::PageLoadTiming& timing, | 
| +    const page_load_metrics::PageLoadExtraInfo& extra_info) { | 
| +  switch (connection_info_) { | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY2: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY3: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_14: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_15: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP0_9: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_0: | 
| +    case net::HttpResponseInfo::NUM_OF_CONNECTION_INFOS: | 
| +      return; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_1: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H1.Experimental.PaintTiming." | 
| +          "ParseStartToFirstMeaningfulPaint", | 
| +          timing.first_meaningful_paint.value() - timing.parse_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP2: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H2.Experimental.PaintTiming." | 
| +          "ParseStartToFirstMeaningfulPaint", | 
| +          timing.first_meaningful_paint.value() - timing.parse_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_QUIC: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.QUIC.Experimental.PaintTiming." | 
| +          "ParseStartToFirstMeaningfulPaint", | 
| +          timing.first_meaningful_paint.value() - timing.parse_start.value()); | 
| +      break; | 
| +  } | 
| +} | 
| + | 
| +void ProtocolPageLoadMetricsObserver::OnDomContentLoadedEventStart( | 
| +    const page_load_metrics::PageLoadTiming& timing, | 
| +    const page_load_metrics::PageLoadExtraInfo& extra_info) { | 
| +  switch (connection_info_) { | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY2: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY3: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_14: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_15: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP0_9: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_0: | 
| +    case net::HttpResponseInfo::NUM_OF_CONNECTION_INFOS: | 
| +      return; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_1: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H1.DocumentTiming." | 
| +          "NavigationToDOMContentLoadedEventFired", | 
| +          timing.dom_content_loaded_event_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP2: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H2.DocumentTiming." | 
| +          "NavigationToDOMContentLoadedEventFired", | 
| +          timing.dom_content_loaded_event_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_QUIC: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.QUIC.DocumentTiming." | 
| +          "NavigationToDOMContentLoadedEventFired", | 
| +          timing.dom_content_loaded_event_start.value()); | 
| +      break; | 
| +  } | 
| +} | 
| + | 
| +void ProtocolPageLoadMetricsObserver::OnLoadEventStart( | 
| +    const page_load_metrics::PageLoadTiming& timing, | 
| +    const page_load_metrics::PageLoadExtraInfo& extra_info) { | 
| +  switch (connection_info_) { | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY2: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_SPDY3: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_14: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_DEPRECATED_HTTP2_15: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP0_9: | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_0: | 
| +    case net::HttpResponseInfo::NUM_OF_CONNECTION_INFOS: | 
| +      return; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_1: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H1.DocumentTiming." | 
| +          "NavigationToLoadEventFired", | 
| +          timing.load_event_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_HTTP2: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.H2.DocumentTiming." | 
| +          "NavigationToLoadEventFired", | 
| +          timing.load_event_start.value()); | 
| +      break; | 
| +    case net::HttpResponseInfo::CONNECTION_INFO_QUIC: | 
| +      PAGE_LOAD_HISTOGRAM( | 
| +          "PageLoad.Clients.Protocol.QUIC.DocumentTiming." | 
| +          "NavigationToLoadEventFired", | 
| +          timing.load_event_start.value()); | 
| +      break; | 
| +  } | 
| +} | 
|  |