Add a content-security-policy (CSP) flag.

lib/compiler/implementation/compiler.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.
 
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
 const bool REPORT_EXCESS_RESOLUTION = false;
@@ skipping 183 matching lines @@
 
   bool hasCrashed = false;
 
   Compiler({this.tracer: const Tracer(),
             this.enableTypeAssertions: false,
             this.enableUserAssertions: false,
             this.enableConcreteTypeInference: false,
             this.enableMinification: false,
             bool emitJavaScript: true,
             bool generateSourceMap: true,
+            bool enableContentSecurityPolicy: false,
             List<String> strips: const []})
       : libraries = new Map<String, LibraryElement>(),
         progress = new Stopwatch() {
     progress.start();
     world = new World(this);
     scanner = new ScannerTask(this);
     dietParser = new DietParserTask(this);
     parser = new ParserTask(this);
     patchParser = new PatchParserTask(this);
     libraryLoader = new LibraryLoaderTask(this);
     validator = new TreeValidatorTask(this);
     resolver = new ResolverTask(this);
     closureToClassMapper = new closureMapping.ClosureTask(this);
     checker = new TypeCheckerTask(this);
     typesTask = new ti.TypesTask(this, enableConcreteTypeInference);
     backend = emitJavaScript ?
-        new js_backend.JavaScriptBackend(this, generateSourceMap) :
+        new js_backend.JavaScriptBackend(this,
+                                         generateSourceMap,
+                                         enableContentSecurityPolicy) :
         new dart_backend.DartBackend(this, strips);
     constantHandler = new ConstantHandler(this, backend.constantSystem);
     enqueuer = new EnqueueTask(this);
     tasks = [scanner, dietParser, parser, resolver, closureToClassMapper,
              checker, typesTask, constantHandler, enqueuer];
     tasks.addAll(backend.tasks);
   }
 
   Universe get resolverWorld => enqueuer.resolution.universe;
   Universe get codegenWorld => enqueuer.codegen.universe;
@@ skipping 624 matching lines @@
   // TODO(johnniwinther): Use [spannable] and [message] to provide better
   // information on assertion errors.
   if (condition is Function){
     condition = condition();
   }
   if (!condition && message != null) {
     print('assertion failed: $message');
   }
   return spannable != null && condition;
 }