dart:io | Add SecureSocket.importPrivateCertificates, that reads a PKCS#12 file.

runtime/bin/secure_socket.h

Index: runtime/bin/secure_socket.h
diff --git a/runtime/bin/secure_socket.h b/runtime/bin/secure_socket.h
index 304ccd52dad4bfbf8abcf21023fce6612bf6041a..cdb4f65be98080b3c4839272bc92862c822b22ec 100644
--- a/runtime/bin/secure_socket.h
+++ b/runtime/bin/secure_socket.h
@@ -46,6 +46,8 @@ class SSLFilter {
     kFirstEncrypted = kReadEncrypted
   };
 
+  static dart::Mutex* mutex;  // To protect library initialization.
+
   SSLFilter()
       : callback_error(NULL),
         string_start_(NULL),
@@ -87,15 +89,17 @@ class SSLFilter {
   static void InitializeLibrary(const char* certificate_database,
                                 const char* password,
                                 bool use_builtin_root_certificates,
+                                bool read_only,
                                 bool report_duplicate_initialization = true);
   static Dart_Port GetServicePort();
   Dart_Handle callback_error;
 
+  static char* GetPassword() { return password_; }
+
  private:
   static const int kMemioBufferSize = 20 * KB;
   static bool library_initialized_;
-  static const char* password_;
-  static dart::Mutex* mutex_;  // To protect library initialization.
+  static char* password_;
   static NativeService filter_service_;
 
   uint8_t* buffers_[kNumBuffers];
@@ -115,7 +119,6 @@ class SSLFilter {
     return static_cast<BufferIndex>(i) >= kFirstEncrypted;
   }
   void InitializeBuffers(Dart_Handle dart_this);
-  void InitializePlatformData();
 
   DISALLOW_COPY_AND_ASSIGN(SSLFilter);
 };