Index: chrome/browser/net/chrome_network_delegate.cc |
diff --git a/chrome/browser/net/chrome_network_delegate.cc b/chrome/browser/net/chrome_network_delegate.cc |
index 11a211fa7b2dece612a28152f7a3705e1f34be08..d2ece160c998c05ae90b3d44c7cd10192ed2e3a7 100644 |
--- a/chrome/browser/net/chrome_network_delegate.cc |
+++ b/chrome/browser/net/chrome_network_delegate.cc |
@@ -30,6 +30,7 @@ |
#include "chrome/browser/extensions/extension_system.h" |
#include "chrome/browser/google/google_util.h" |
#include "chrome/browser/net/chrome_network_data_saving_metrics.h" |
+#include "chrome/browser/net/client_hints.h" |
#include "chrome/browser/net/connect_interceptor.h" |
#include "chrome/browser/net/load_time_stats.h" |
#include "chrome/browser/performance_monitor/performance_monitor.h" |
@@ -80,6 +81,7 @@ bool ChromeNetworkDelegate::g_never_throttle_requests_ = false; |
namespace { |
const char kDNTHeader[] = "DNT"; |
+const char kClientHintsDevicePixelRatioHeader[] = "CH-DPR"; |
mmenke
2013/09/25 16:26:19
optional: This may make more sense as a static me
mmenke
2013/09/25 16:26:19
ERm...This seems to violate the spec linked in the
bengr
2013/09/25 17:25:52
There's a newer spec. The CL points to it but a co
bengr
2013/09/25 17:25:52
Done.
|
// If the |request| failed due to problems with a proxy, forward the error to |
// the proxy extension API. |
@@ -334,6 +336,11 @@ void ChromeNetworkDelegate::set_predictor( |
new chrome_browser_net::ConnectInterceptor(predictor)); |
} |
+void ChromeNetworkDelegate::SetEnableClientHints() { |
+ client_hints_.reset(new ClientHints()); |
+ client_hints_->Init(); |
+} |
+ |
// static |
void ChromeNetworkDelegate::NeverThrottleRequests() { |
g_never_throttle_requests_ = true; |
@@ -418,6 +425,11 @@ int ChromeNetworkDelegate::OnBeforeURLRequest( |
if (enable_do_not_track_ && enable_do_not_track_->GetValue()) |
request->SetExtraRequestHeaderByName(kDNTHeader, "1", true /* override */); |
+ if (client_hints_) { |
+ request->SetExtraRequestHeaderByName(kClientHintsDevicePixelRatioHeader, |
+ client_hints_->GetString(), true); |
+ } |
+ |
bool force_safe_search = force_google_safe_search_ && |
force_google_safe_search_->GetValue(); |