Sending a data saver Pageload metrics pingback

components/data_reduction_proxy/core/common/data_reduction_proxy_params.cc

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_params.cc
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_params.cc b/components/data_reduction_proxy/core/common/data_reduction_proxy_params.cc
index c66a27ca27bb6f0c8a486616aa4b0cfb1d9147a8..c176f87bac28329ed8ea0f083e2ddf17463b5ec1 100644
--- a/components/data_reduction_proxy/core/common/data_reduction_proxy_params.cc
+++ b/components/data_reduction_proxy/core/common/data_reduction_proxy_params.cc
@@ -41,20 +41,24 @@ const char kQuicFieldTrial[] = "DataReductionProxyUseQuic";
 
 const char kLoFiFieldTrial[] = "DataCompressionProxyLoFi";
 const char kLoFiFlagFieldTrial[] = "DataCompressionProxyLoFiFlag";
 
 const char kTrustedSpdyProxyFieldTrialName[] = "DataReductionTrustedSpdyProxy";
 
 // Default URL for retrieving the Data Reduction Proxy configuration.
 const char kClientConfigURL[] =
     "https://datasaver.googleapis.com/v1/clientConfigs";
 
+// Default URL for sending pageload metrics.
+const char kPingbackURL[] =
+    "https://datasaver.googleapis.com/v1/metrics:recordPageloadMetrics";
+
 // The name of the server side experiment field trial.
 const char kServerExperimentsFieldTrial[] =
     "DataReductionProxyServerExperiments";
 
 }  // namespace
 
 namespace data_reduction_proxy {
 namespace params {
 
 bool IsIncludedInPromoFieldTrial() {
@@ -152,20 +156,25 @@ bool IsLoFiDisabledViaFlags() {
           data_reduction_proxy::switches::kDataReductionProxyLoFi);
   return lo_fi_value ==
          data_reduction_proxy::switches::kDataReductionProxyLoFiValueDisabled;
 }
 
 bool AreLoFiPreviewsEnabledViaFlags() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       data_reduction_proxy::switches::kEnableDataReductionProxyLoFiPreview);
 }
 
+bool IsForcePingbackEnabledViaFlags() {
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      data_reduction_proxy::switches::kEnableDataReductionProxyForcePingback);
+}
+
 bool WarnIfNoDataReductionProxy() {
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           data_reduction_proxy::switches::
           kEnableDataReductionProxyBypassWarning)) {
     return true;
   }
   return false;
 }
 
 bool IsIncludedInQuicFieldTrial() {
@@ -197,20 +206,40 @@ GURL GetConfigServiceURL() {
 
   GURL result(url);
   if (result.is_valid())
     return result;
 
   LOG(WARNING) << "The following client config URL specified at the "
                << "command-line or variation is invalid: " << url;
   return GURL(kClientConfigURL);
 }
 
+GURL GetPingbackURL() {
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  std::string url;
+  if (command_line->HasSwitch(switches::kDataReductionPingbackURL)) {
+    url =
+        command_line->GetSwitchValueASCII(switches::kDataReductionPingbackURL);
+  }
+
+  if (url.empty())
+    return GURL(kPingbackURL);
+
+  GURL result(url);
+  if (result.is_valid())
+    return result;
+
+  LOG(WARNING) << "The following page load metrics URL specified at the "
+               << "command-line or variation is invalid: " << url;
+  return GURL(kPingbackURL);
+}
+
 bool ShouldForceEnableDataReductionProxy() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       data_reduction_proxy::switches::kEnableDataReductionProxy);
 }
 
 bool ShouldUseSecureProxyByDefault() {
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           data_reduction_proxy::switches::
               kDataReductionProxyStartSecureDisabled))
     return false;