DevTools: fix for test inspector-protocol/page/enable-disable.html

LayoutTests/http/tests/inspector-protocol/resources/protocol-test.html

Index: LayoutTests/http/tests/inspector-protocol/resources/protocol-test.html
diff --git a/LayoutTests/http/tests/inspector-protocol/resources/protocol-test.html b/LayoutTests/http/tests/inspector-protocol/resources/protocol-test.html
index 0095abc8c3be67c6d571c7c20c648fa2f18ada80..6dd2b39ecf5fee45d4b6f8c0aa840d3f57963fce 100644
--- a/LayoutTests/http/tests/inspector-protocol/resources/protocol-test.html
+++ b/LayoutTests/http/tests/inspector-protocol/resources/protocol-test.html
@@ -31,8 +31,14 @@ InspectorFrontendAPI = {};
 InspectorTest = {};
 InspectorTest._dispatchTable = [];
 InspectorTest._requestId = -1;
+InspectorTest._dumpInspectorProtocolMessages = false;
 InspectorTest.eventHandler = {};
 
+InspectorTest.startDumpingProtocolMessages = function()
+{
+    InspectorTest._dumpInspectorProtocolMessages = true;
+}
+
 /**
  * @param {string} method
  * @param {object} params
@@ -46,6 +52,8 @@ InspectorTest.sendCommand = function(method, params, handler)
                           "params": params,
                           "id": this._requestId };
 
+    if (InspectorTest._dumpInspectorProtocolMessages)
+        testRunner.logToStderr(JSON.stringify(messageObject, ""));
     InspectorFrontendHost.sendMessageToBackend(JSON.stringify(messageObject));
 
     return this._requestId;
@@ -133,6 +141,8 @@ InspectorTest.sendRawCommand = function(command, handler)
 InspectorFrontendAPI.dispatchMessage = function(message)
 {
     var messageObject = JSON.parse(message);
+    if (InspectorTest._dumpInspectorProtocolMessages)
+        testRunner.logToStderr(JSON.stringify(messageObject, ""));
     var messageId = messageObject["id"];
     try {
         if (typeof messageId === "number") {