misc(proto): add throttling and throttling_method

lighthouse-core/lib/proto-preprocessor.js

@@ -29,10 +29,22 @@ function processForProto(lhr) {
   // 'ignore unknown fields' in the language of conversion.
   if (reportJson.configSettings) {
     // The settings that are in both proto and LHR
-    const {formFactor, locale, onlyCategories, channel} = reportJson.configSettings;
+    const {
+      formFactor,
+      locale,
+      onlyCategories,
+      channel,
+      throttling,
+      throttlingMethod} = reportJson.configSettings;
 
     // @ts-expect-error - intentionally only a subset of settings.
-    reportJson.configSettings = {formFactor, locale, onlyCategories, channel};
+    reportJson.configSettings = {
+      formFactor,
+      locale,
+      onlyCategories,
+      channel,
+      throttling,
+      throttlingMethod};
   }
 
   // Remove runtimeError if it is NO_ERROR

proto/lighthouse-result.proto

@@ -126,7 +126,7 @@ message LighthouseResult {
   map<string, CategoryGroup> category_groups = 11;
 
   // Message containing the configuration settings for the LH run
-  // Next field number: 6
+  // Next ID: 9
   message ConfigSettings {
     // The possible form factors an audit can be run in.
     // This enum served the emulated_form_factor field, but in v7, that field
@@ -158,6 +158,33 @@ message LighthouseResult {
     // How Lighthouse was run, e.g. from the Chrome extension or from the npm
     // module
     string channel = 4;
+
+    // Next ID: 7
+    message ThrottlingSettings {
+      // The round trip time in milliseconds.
+      double rtt_ms = 1;
+
+      // The network throughput in kilobits per second.
+      double throughput_kbps = 2;
+
+      // The network request latency in milliseconds.
+      double request_latency_ms = 3;
+
+      // The network download throughput in kilobits per second.
+      double download_throughput_kbps = 4;
+
+      // The network upload throughput in kilobits per second.
+      double upload_throughput_kbps = 5;
+
+      // The amount of slowdown applied to the cpu (1/<cpuSlowdownMultiplier>).
+      double cpu_slowdown_multiplier = 6;
+    }
+
+    // The throttling config settings.
+    ThrottlingSettings throttling = 7;
+
+    // The method used to throttle the network.
+    string throttling_method = 8;
   }
 
   // The settings that were used to run this audit