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

Source/core/inspector/InspectorPageAgent.cpp

 /*
  * Copyright (C) 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 48 matching lines @@
 #include "core/loader/cache/CachedCSSStyleSheet.h"
 #include "core/loader/cache/CachedFont.h"
 #include "core/loader/cache/CachedImage.h"
 #include "core/loader/cache/CachedResource.h"
 #include "core/loader/cache/CachedResourceLoader.h"
 #include "core/loader/cache/CachedScript.h"
 #include "core/loader/cache/MemoryCache.h"
 #include "core/page/Frame.h"
 #include "core/page/FrameView.h"
 #include "core/page/Page.h"
+#include "core/page/PageConsole.h"
 #include "core/page/Settings.h"
 #include "core/platform/Cookie.h"
 #include "core/platform/text/RegularExpression.h"
 #include "modules/geolocation/GeolocationController.h"
 #include "modules/geolocation/GeolocationError.h"
 #include "weborigin/SecurityOrigin.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/Vector.h"
 #include "wtf/text/Base64.h"
@@ skipping 824 matching lines @@
 }
 
 Frame* InspectorPageAgent::assertFrame(ErrorString* errorString, const String& frameId)
 {
     Frame* frame = frameForId(frameId);
     if (!frame)
         *errorString = "No frame for given id found";
     return frame;
 }
 
+String InspectorPageAgent::resourceSourceMapURL(const String& url)
+{
+    DEFINE_STATIC_LOCAL(String, sourceMapHttpHeader, (ASCIILiteral("SourceMap")));
+    DEFINE_STATIC_LOCAL(String, deprecatedSourceMapHttpHeader, (ASCIILiteral("X-SourceMap")));
+    if (url.isEmpty())
+        return String();
+    Frame* frame = mainFrame();
+    if (!frame)
+        return String();
+    CachedResource* resource = cachedResource(frame, KURL(ParsedURLString, url));
+    if (!resource)
+        return String();
+    String deprecatedHeaderSourceMapURL = resource->response().httpHeaderField(deprecatedSourceMapHttpHeader);
+    if (!deprecatedHeaderSourceMapURL.isEmpty()) {
+        m_page->console()->addMessage(NetworkMessageSource, WarningMessageLevel, "Resource is served with deprecated header X-SourceMap, SourceMap should be used instead.", url, 0);
+        return deprecatedHeaderSourceMapURL;
+    }
+    return resource->response().httpHeaderField(sourceMapHttpHeader);
+}
+
 // static
 DocumentLoader* InspectorPageAgent::assertDocumentLoader(ErrorString* errorString, Frame* frame)
 {
     FrameLoader* frameLoader = frame->loader();
     DocumentLoader* documentLoader = frameLoader ? frameLoader->documentLoader() : 0;
     if (!documentLoader)
         *errorString = "No documentLoader for given frame found";
     return documentLoader;
 }
 
@@ skipping 314 matching lines @@
 }
 
 void InspectorPageAgent::setShowViewportSizeOnResize(ErrorString*, bool show, const bool* showGrid)
 {
     m_state->setBoolean(PageAgentState::showSizeOnResize, show);
     m_state->setBoolean(PageAgentState::showGridOnResize, showGrid && *showGrid);
 }
 
 } // namespace WebCore