DevTools: make StylesSourceMapping in charge of creating and removing UISourceCodes

third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js

Index: third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js
diff --git a/third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js b/third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js
index 054424f577eae930975ea465b7c617f50755cd8d..3aa82a7de74909e5230091c7c2ff2ab72760c526 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js
@@ -93,12 +93,6 @@ Bindings.NetworkProject = class extends SDK.SDKObject {
           debuggerModel.addEventListener(
               SDK.DebuggerModel.Events.FailedToParseScriptSource, this._parsedScriptSource, this));
     }
-    var cssModel = SDK.CSSModel.fromTarget(target);
-    if (cssModel) {
-      this._eventListeners.push(
-          cssModel.addEventListener(SDK.CSSModel.Events.StyleSheetAdded, this._styleSheetAdded, this),
-          cssModel.addEventListener(SDK.CSSModel.Events.StyleSheetRemoved, this._styleSheetRemoved, this));
-    }
     this._eventListeners.push(target.targetManager().addEventListener(
         SDK.TargetManager.Events.SuspendStateChanged, this._suspendStateChanged, this));
   }
@@ -196,14 +190,24 @@ Bindings.NetworkProject = class extends SDK.SDKObject {
   }
 
   /**
-   * @param {?SDK.ResourceTreeFrame} frame
    * @param {string} url
+   * @param {?SDK.ResourceTreeFrame} frame
+   * @param {boolean} isContentScript
+   * @return {?Workspace.UISourceCode}
    */
-  _removeFileForURL(frame, url) {
-    var project = this._workspaceProjects.get(Bindings.NetworkProject.projectId(this.target(), frame, false));
-    if (!project)
-      return;
-    project.removeFile(url);
+  getFile(url, frame, isContentScript) {

[dgozman, 2017/01/27 23:49:12]

uiSourceCode(frame, url, isContentScript)

+    var project = this._workspaceProject(frame, isContentScript);
+    return project.uiSourceCodeForURL(url);
+  }
+
+  /**
+   * @param {!Workspace.UISourceCode} uiSourceCode
+   */
+  removeFile(uiSourceCode) {

[dgozman, 2017/01/27 23:49:12]

removeUISourceCode

[lushnikov, 2017/01/30 14:19:15]

I was a bit hesitant to add just another one "removeUISourceCode" method

+    var project = uiSourceCode.project();
+    console.assert(
+        project[Bindings.NetworkProject._targetSymbol] === this.target(), 'Cannot remove foreign UISourceCode');
+    /** @type {!Bindings.ContentProviderBasedProject} */ (project).removeFile(uiSourceCode.url());
   }
 
   _populate() {
@@ -256,31 +260,16 @@ Bindings.NetworkProject = class extends SDK.SDKObject {
   }
 
   /**
-   * @param {!Common.Event} event
+   * @param {!SDK.CSSStyleSheetHeader} header
+   * @return {!Workspace.UISourceCode}
    */
-  _styleSheetAdded(event) {
-    var header = /** @type {!SDK.CSSStyleSheetHeader} */ (event.data);
-    if (header.isInline && !header.hasSourceURL && header.origin !== 'inspector')
-      return;
-    if (!header.resourceURL())
-      return;
-
+  createFileForStyleSheetHeader(header) {

[dgozman, 2017/01/27 23:49:12]

Let's get rid of this one as well. We should expose something like
addUISourceCode(frame, contentProvider, isContentScript, mimeType).

     var originalContentProvider = header.originalContentProvider();
     var uiSourceCode = this._createFile(originalContentProvider, SDK.ResourceTreeFrame.fromStyleSheet(header), false);
     uiSourceCode[Bindings.NetworkProject._styleSheetSymbol] = header;
     var resource = SDK.ResourceTreeModel.resourceForURL(uiSourceCode.url());
     this._addUISourceCodeWithProvider(uiSourceCode, originalContentProvider, this._resourceMetadata(resource));
-  }
-
-  /**
-   * @param {!Common.Event} event
-   */
-  _styleSheetRemoved(event) {
-    var header = /** @type {!SDK.CSSStyleSheetHeader} */ (event.data);
-    if (header.isInline && !header.hasSourceURL && header.origin !== 'inspector')
-      return;
-
-    this._removeFileForURL(SDK.ResourceTreeFrame.fromStyleSheet(header), header.resourceURL());
+    return uiSourceCode;
   }
 
   /**