Enable QUIC for proxies based on Finch config and command line switch.

components/data_reduction_proxy/core/common/data_reduction_proxy_params.h

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_params.h
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_params.h b/components/data_reduction_proxy/core/common/data_reduction_proxy_params.h
index e8164d7a6f767c5bd7467bbbddfdcaff755e4ccf..c574d3eb48dd39c644a015fd7e9b45ca3d8a3a70 100644
--- a/components/data_reduction_proxy/core/common/data_reduction_proxy_params.h
+++ b/components/data_reduction_proxy/core/common/data_reduction_proxy_params.h
@@ -99,6 +99,16 @@ class DataReductionProxyParams {
   static bool IsIncludedInAndroidOnePromoFieldTrial(
       const char* build_fingerprint);
 
+  // Returns true if this client is part of a field trial that sets the origin
+  // proxy server as quic://proxy.googlezip.net.
+  static bool IsIncludedInUseQUICFieldTrial();
+
+  static std::string GetFieldTrialName();
+
+  // Sets if QUIC is enabled for proxies. Also, may update the origin proxy

[bengr, 2015/02/11 23:57:28]

What do you mean by 'may'? Can't you just say:

// If true, uses QUIC instead of SPDY to connect to proxies that use TLS.

[tbansal1, 2015/02/12 02:27:22]

Done.

+  // server to a QUIC server.
+  void EnableQUIC(bool quic_enabled_for_proxies);
+
   // Constructs configuration parameters. If |kAllowed|, then the standard
   // data reduction proxy configuration is allowed to be used. If
   // |kfallbackAllowed| a fallback proxy can be used if the primary proxy is
@@ -260,6 +270,11 @@ class DataReductionProxyParams {
     return configured_on_command_line_;
   }
 
+  // Returns true if QUIC is enabled for proxies.
+  bool IsQUICEnabled() const {

[bengr, 2015/02/11 23:57:28]

IsQuicEnabled

[tbansal1, 2015/02/12 02:27:22]

Done.

+    return quic_enabled_for_proxies_;
+  }
+
  protected:
   // Test constructor that optionally won't call Init();
   DataReductionProxyParams(int flags,
@@ -321,6 +336,8 @@ class DataReductionProxyParams {
   bool alt_fallback_allowed_;
   bool promo_allowed_;
   bool holdback_;
+  bool quic_enabled_for_proxies_;

[bengr, 2015/02/11 23:57:28]

quic_enabled_

[tbansal1, 2015/02/12 02:27:22]

Done.

+  std::string command_line_origin_;
 
   bool configured_on_command_line_;
 };