DevTools: do not use Bindings.NetworkProject.styleHeaderForUISourceCode in SourceFormatter

third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js

Index: third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js b/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
index 4ce4d5e5c47727ed9d7f1414dee25273f9b841d0..2fea486178758d3150d436c0746e257709ef1009 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
+++ b/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
@@ -239,6 +239,7 @@ Sources.SourceFormatter.ScriptMapping = class {
 Sources.SourceFormatter.StyleMapping = class {
   constructor() {
     Bindings.cssWorkspaceBinding.addSourceMapping(this);
+    this._styleHeaderSymbol = Symbol('Sources.SourceFormatter.StyleMapping');
   }
 
   /**
@@ -266,7 +267,7 @@ Sources.SourceFormatter.StyleMapping = class {
     if (!formatData)
       return [];
     var originalLocation = formatData.mapping.formattedToOriginal(uiLocation.lineNumber, uiLocation.columnNumber);
-    var header = Bindings.NetworkProject.styleHeaderForUISourceCode(formatData.originalSourceCode);
+    var header = formatData.originalSourceCode[this._styleHeaderSymbol];
     if (!header)
       return [];
     return [new SDK.CSSLocation(header, originalLocation[0], originalLocation[1])];
@@ -278,13 +279,17 @@ Sources.SourceFormatter.StyleMapping = class {
    */
   _setSourceMappingEnabled(formatData, enable) {
     var original = formatData.originalSourceCode;
-    var styleHeader = Bindings.NetworkProject.styleHeaderForUISourceCode(original);
+    var rawLocations = Bindings.cssWorkspaceBinding.uiLocationToRawLocations(original.uiLocation(0, 0));
+    var styleHeader = rawLocations.length ? rawLocations[0].header() : null;

[caseq, 2017/05/16 23:54:30]

Let's take care of all possible headers here?

[lushnikov, 2017/05/17 00:17:49]

Sure!

     if (!styleHeader)
       return;
-    if (enable)
+    if (enable) {
+      original[this._styleHeaderSymbol] = styleHeader;
       styleHeader[Sources.SourceFormatData._formatDataSymbol] = formatData;
-    else
+    } else {
+      original[this._styleHeaderSymbol] = null;
       delete styleHeader[Sources.SourceFormatData._formatDataSymbol];
+    }
     Bindings.cssWorkspaceBinding.updateLocations(styleHeader);
   }
 };