Expose effective connection type to Cronet

net/nqe/network_quality_estimator.h

Index: net/nqe/network_quality_estimator.h
diff --git a/net/nqe/network_quality_estimator.h b/net/nqe/network_quality_estimator.h
index afeca4eb01e1220879cb01bf87a644ebe06a9775..2e7de064e364ea78668f13524e6a8f3217d4dd03 100644
--- a/net/nqe/network_quality_estimator.h
+++ b/net/nqe/network_quality_estimator.h
@@ -64,6 +64,11 @@ class NET_EXPORT_PRIVATE NetworkQualityEstimator
   // EffectiveConnectionType of a network is independent of if the current
   // connection is metered or not. For example, an unmetered slow connection may
   // have EFFECTIVE_CONNECTION_TYPE_SLOW_2G as its effective connection type.
+  // An invalid Java prefix is specified to prevent the Java class generator
+  // from automatically stripping off the common prefix
+  // ("EFFECTIVE_CONNECTION_TYPE_").
+  // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net
+  // GENERATED_JAVA_PREFIX_TO_STRIP: PREFIX_NOT_PRESENT_
   enum EffectiveConnectionType {
     // The connection types should be in increasing order of quality.
     EFFECTIVE_CONNECTION_TYPE_UNKNOWN = 0,
@@ -596,6 +601,11 @@ class NET_EXPORT_PRIVATE NetworkQualityEstimator
   nqe::internal::NetworkQuality
       default_observations_[NetworkChangeNotifier::CONNECTION_LAST + 1];
 
+  // Default thresholds for different effective connection types. The default
+  // values are used if thresholds are unavailable from the variation params.
+  nqe::internal::NetworkQuality
+      default_connection_thresholds_[EFFECTIVE_CONNECTION_TYPE_LAST];
+
   // Thresholds for different effective connection types obtained from field
   // trial variation params. These thresholds encode how different connection
   // types behave in general. In future, complex encodings (e.g., curve