DevTools: Add support for //# sourceURL (sourceMappingURL) comments and deprecate //@ ones

Source/core/inspector/InspectorDebuggerAgent.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010-2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 617 matching lines @@
     InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(m_pausedScriptState);
     if (injectedScript.hasNoValue()) {
         ASSERT_NOT_REACHED();
         return Array<TypeBuilder::Debugger::CallFrame>::create();
     }
     return injectedScript.wrapCallFrames(m_currentCallStack);
 }
 
 String InspectorDebuggerAgent::sourceMapURLForScript(const Script& script)
 {
-    DEFINE_STATIC_LOCAL(String, sourceMapHttpHeader, (ASCIILiteral("X-SourceMap")));
-
-    String sourceMapURL = ContentSearchUtils::findSourceMapURL(script.source, ContentSearchUtils::JavaScriptMagicComment);
-    if (!sourceMapURL.isEmpty())
+    bool deprecated;
+    String sourceMapURL = ContentSearchUtils::findSourceMapURL(script.source, ContentSearchUtils::JavaScriptMagicComment, &deprecated);
+    if (!sourceMapURL.isEmpty()) {
+        if (deprecated)
+            addConsoleMessage(NetworkMessageSource, WarningMessageLevel, "\"//@ sourceMapURL=\" source mapping URL declaration is deprecated, \"//# sourceMapURL=\" declaration should be used instead.", script.url);
         return sourceMapURL;
+    }
 
     if (script.url.isEmpty())
         return String();
 
     InspectorPageAgent* pageAgent = m_instrumentingAgents->inspectorPageAgent();
     if (!pageAgent)
         return String();
-
-    CachedResource* resource = pageAgent->cachedResource(pageAgent->mainFrame(), KURL(ParsedURLString, script.url));
-    if (resource)
-        return resource->response().httpHeaderField(sourceMapHttpHeader);
-    return String();
+    return pageAgent->resourceSourceMapURL(script.url);
 }
 
 // JavaScriptDebugListener functions
 
 void InspectorDebuggerAgent::didParseSource(const String& scriptId, const Script& script)
 {
     // Don't send script content to the front end until it's really needed.
     const bool* isContentScript = script.isContentScript ? &script.isContentScript : 0;
     String sourceMapURL = sourceMapURLForScript(script);
     String* sourceMapURLParam = sourceMapURL.isNull() ? 0 : &sourceMapURL;
     String sourceURL;
-    if (!script.startLine && !script.startColumn)
-        sourceURL = ContentSearchUtils::findSourceURL(script.source, ContentSearchUtils::JavaScriptMagicComment);
+    if (!script.startLine && !script.startColumn) {
+        bool deprecated;
+        sourceURL = ContentSearchUtils::findSourceURL(script.source, ContentSearchUtils::JavaScriptMagicComment, &deprecated);
+        if (deprecated)
+            addConsoleMessage(NetworkMessageSource, WarningMessageLevel, "\"//@ sourceURL=\" source URL declaration is deprecated, \"//# sourceURL=\" declaration should be used instead.", script.url);
+    }
     bool hasSourceURL = !sourceURL.isEmpty();
     String scriptURL = hasSourceURL ? sourceURL : script.url;
     bool* hasSourceURLParam = hasSourceURL ? &hasSourceURL : 0;
     m_frontend->scriptParsed(scriptId, scriptURL, script.startLine, script.startColumn, script.endLine, script.endColumn, isContentScript, sourceMapURLParam, hasSourceURLParam);
 
     m_scripts.set(scriptId, script);
 
     if (scriptURL.isEmpty())
         return;
 
@@ skipping 116 matching lines @@
 void InspectorDebuggerAgent::reset()
 {
     m_scripts.clear();
     m_breakpointIdToDebugServerBreakpointIds.clear();
     if (m_frontend)
         m_frontend->globalObjectCleared();
 }
 
 } // namespace WebCore