DevTools: do not pro-actively query all StyleSheets for their content.

third_party/WebKit/LayoutTests/http/tests/inspector/workspace-test.js

Index: third_party/WebKit/LayoutTests/http/tests/inspector/workspace-test.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/workspace-test.js b/third_party/WebKit/LayoutTests/http/tests/inspector/workspace-test.js
index 2339a68f368bd67028bdd0518be3b623bbafd841..9c7e3de7c4a2c10900a3b061962ad7d3383e454f 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/workspace-test.js
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/workspace-test.js
@@ -113,13 +113,13 @@ InspectorTest.waitForWorkspaceUISourceCodeRemovedEvent = function(callback, coun
 
 InspectorTest.addMockUISourceCodeToWorkspace = function(url, type, content)
 {
-    var mockContentProvider = new WebInspector.StaticContentProvider(url, type, Promise.resolve(content));
+    var mockContentProvider = WebInspector.StaticContentProvider.fromString(url, type, content);
     InspectorTest.testNetworkProject.addFile(mockContentProvider, null, false);
 }
 
 InspectorTest.addMockUISourceCodeViaNetwork = function(url, type, content, target)
 {
-    var mockContentProvider = new WebInspector.StaticContentProvider(url, type, Promise.resolve(content));
+    var mockContentProvider = WebInspector.StaticContentProvider.fromString(url, type, content);
     InspectorTest.testNetworkProject.addFile(mockContentProvider, target.resourceTreeModel.mainFrame, false);
 }