Introduce Dart_SetVMFlags API function.

runtime/include/dart_api.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
  *
  * Dart is a class-based programming language for creating structured
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  *   successful and true if successful. The embedder is responsible for
  *   maintaining consistency in the case of errors (e.g: isolate is created,
  *   but loading of scripts fails then the embedder should ensure that
  *   Dart_ShutdownIsolate is called on the isolate).
  *   In the case of errors the caller is responsible for freeing the buffer
  *   returned in error containing an error string.
  */
 typedef bool (*Dart_IsolateCreateCallback)(void* callback_data, char** error);
 
 /**
- * Initializes the VM with the given commmand line flags.
+ * Initializes the VM.
  *
- * \param argc The length of the arguments array.
- * \param argv An array of arguments.
  * \param callback A function to be called during isolate creation.
  *   See Dart_IsolateCreateCallback.
  *
  * \return True if initialization is successful.
  */
-DART_EXPORT bool Dart_Initialize(int argc, const char** argv,
-                                 Dart_IsolateCreateCallback callback);
+DART_EXPORT bool Dart_Initialize(Dart_IsolateCreateCallback callback);
+
+/**
+ * Sets command line flags. Should be called before Dart_Initialize.
+ *
+ * \param argc The length of the arguments array.
+ * \param argv An array of arguments.
+ *
+ * \return True if VM flags set successfully.
+ */
+DART_EXPORT bool Dart_SetVMFlags(int argc, const char** argv);
 
 /**
  * Returns true if the named VM flag is set.
  */
 DART_EXPORT bool Dart_IsVMFlagSet(const char* flag_name);
 
 // --- Isolates ---
 
 /**
  * An isolate is the unit of concurrency in Dart. Each isolate has
@@ skipping 957 matching lines @@
 
 // --- Profiling support ----
 
 // External pprof support for gathering and dumping symbolic
 // information that can be used for better profile reports for
 // dynamically generated code.
 DART_EXPORT void Dart_InitPprofSupport();
 DART_EXPORT void Dart_GetPprofSymbolInfo(void** buffer, int* buffer_size);
 
 #endif  // INCLUDE_DART_API_H_