Do not override DOM's global functions in renderer.

Author: zcbenz

src/node.js

@@ -22,21 +22,26 @@
 
 process.EventEmitter=EventEmitter;// process.EventEmitter is deprecated
 
+varisRenderer=process.argv[2]=='--type=renderer';
+
 startup.setupProcessObject();
 
 // do this good and early, since it handles errors.
 startup.processFatal();
 
 startup.globalVariables();
+if(!isRenderer){// No indent to minimize diff.
 startup.globalTimeouts();
 startup.globalConsole();
+}// not isRenderer
 
 startup.processAssert();
 startup.processConfig();
 startup.processNextTick();
 startup.processPromises();
 startup.processStdio();
 startup.processKillAndExit();
+if(!isRenderer){// No indent to minimize diff.
 startup.processSignalHandlers();
 
 // Do not initialize channel in debugger agent, it deletes env variable
@@ -45,6 +50,7 @@
 startup.processChannel();
 
 startup.processRawDebug();
+}// not isRenderer
 
 process.argv[0]=process.execPath;