Deprecate Math object in corelib in favor of dart:math library.

tests/standalone/io/web_socket_protocol_processor_test.dart

 // Copyright (c) 2012, 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.
 
+#import("dart:math");
+
 #source("../../../runtime/bin/websocket.dart");
 #source("../../../runtime/bin/websocket_impl.dart");
 
 class WebSocketFrame {
   WebSocketFrame(int opcode, List<int> data);
 }
 
 // Class that when hooked up to the web socket protocol processor will
 // collect the message and expect it to be equal to the
 // expectedMessage field when fully received.
@@ skipping 143 matching lines @@
   int messageCount = 0;
   int frameCount = 0;
 
   void testFragmentMessage(int opcode, List<int> message, int fragmentSize) {
     messageCount++;
     int messageIndex = 0;
     int remaining = message.length;
     bool firstFrame = true;
     bool lastFrame = false;
     while (!lastFrame) {
-      int payloadSize = Math.min(fragmentSize, remaining);
+      int payloadSize = min(fragmentSize, remaining);
       lastFrame = payloadSize == remaining;
       List<int> frame = createFrame(lastFrame,
                                     firstFrame ? opcode : 0x00,
                                     null,
                                     message,
                                     messageIndex,
                                     payloadSize);
       frameCount++;
       messageIndex += payloadSize;
       processor.update(frame, 0, frame.length);
@@ skipping 32 matching lines @@
   runTest(65534, 65537, 1);
   print("Fragment messages test, messages $messageCount, frames $frameCount");
   Expect.equals(messageCount, mc.messageCount);
   Expect.equals(0, mc.closeCount);
 }
 
 void main() {
   testFullMessages();
   testFragmentedMessages();
 }