Remove NetLog::GetCaptureMode() and NetLogCaptureMode::None()

net/log/net_log_capture_mode.h

Index: net/log/net_log_capture_mode.h
diff --git a/net/log/net_log_capture_mode.h b/net/log/net_log_capture_mode.h
index e4f26a30b2f34cc6e8cf4d1aee4fef0640e81c42..2347524e4a86c041c191d372a221ef01e6b73c77 100644
--- a/net/log/net_log_capture_mode.h
+++ b/net/log/net_log_capture_mode.h
@@ -48,11 +48,6 @@ class NET_EXPORT NetLogCaptureMode {
   //    include_socket_bytes() --> true
   static NetLogCaptureMode IncludeSocketBytes();
 
-  // Returns a capture mode that contains the maximal set of capabilities
-  // between |mode1| and |mode2|.
-  static NetLogCaptureMode Max(NetLogCaptureMode mode1,
-                               NetLogCaptureMode mode2);
-
   // If enabled() is true, then _something_ is being captured.
   bool enabled() const;
 
@@ -70,15 +65,8 @@ class NET_EXPORT NetLogCaptureMode {
   int32_t ToInternalValueForTesting() const;
 
  private:
-  // NetLog relies on the internal value of NetLogCaptureMode being an integer,
-  // so it can be read/written atomically across thread.
-  friend class NetLog;
-
   explicit NetLogCaptureMode(uint32_t value);
 
-  static NetLogCaptureMode FromInternalValue(int32_t value);
-  int32_t ToInternalValue() const;
-
   int32_t value_;
 };