[DevTools] Implementation of resource requests blocked by specific urls.

Source/core/inspector/InspectorResourceAgent.h

 /*
  * Copyright (C) 2010 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 65 matching lines @@
         return adoptPtrWillBeNoop(new InspectorResourceAgent(pageAgent));
     }
 
     void disable(ErrorString*) override;
     void restore() override;
 
     ~InspectorResourceAgent() override;
     DECLARE_VIRTUAL_TRACE();
 
     // Called from instrumentation.
+    bool shouldBlockRequest(const ResourceRequest&);

[pfeldman, 2015/08/21 01:38:45]

Can we make it the other way around where devtools would tell loader to block
some?

     void willSendRequest(unsigned long identifier, DocumentLoader*, ResourceRequest&, const ResourceResponse& redirectResponse, const FetchInitiatorInfo&);
     void markResourceAsCached(unsigned long identifier);
     void didReceiveResourceResponse(LocalFrame*, unsigned long identifier, DocumentLoader*, const ResourceResponse&, ResourceLoader*);
     void didReceiveData(LocalFrame*, unsigned long identifier, const char* data, int dataLength, int encodedDataLength);
     void didFinishLoading(unsigned long identifier, double monotonicFinishTime, int64_t encodedDataLength);
     void didReceiveCORSRedirectResponse(LocalFrame*, unsigned long identifier, DocumentLoader*, const ResourceResponse&, ResourceLoader*);
     void didFailLoading(unsigned long identifier, const ResourceError&);
     void didCommitLoad(LocalFrame*, DocumentLoader*);
     void scriptImported(unsigned long identifier, const String& sourceString);
     void didReceiveScriptResponse(unsigned long identifier);
@@ skipping 32 matching lines @@
     void didCloseWebSocket(Document*, unsigned long identifier);
     void didReceiveWebSocketFrame(unsigned long identifier, int opCode, bool masked, const char* payload, size_t payloadLength);
     void didSendWebSocketFrame(unsigned long identifier, int opCode, bool masked, const char* payload, size_t payloadLength);
     void didReceiveWebSocketFrameError(unsigned long identifier, const String&);
 
     // Called from frontend
     void enable(ErrorString*) override;
     void setUserAgentOverride(ErrorString*, const String& userAgent) override;
     void setExtraHTTPHeaders(ErrorString*, const RefPtr<JSONObject>&) override;
     void getResponseBody(ErrorString*, const String& requestId, PassRefPtrWillBeRawPtr<GetResponseBodyCallback>) override;
+    void addBlockedURL(ErrorString*, const String& url) override;
+    void removeBlockedURL(ErrorString*, const String& url) override;
 
     void replayXHR(ErrorString*, const String& requestId) override;
     void setMonitoringXHREnabled(ErrorString*, bool) override;
 
     void canClearBrowserCache(ErrorString*, bool*) override;
     void canClearBrowserCookies(ErrorString*, bool*) override;
     void emulateNetworkConditions(ErrorString*, bool, double, double, double) override;
     void setCacheDisabled(ErrorString*, bool cacheDisabled) override;
 
     void setDataSizeLimitsForTest(ErrorString*, int maxTotal, int maxResource) override;
@@ skipping 37 matching lines @@
 
     PersistentHeapHashSetWillBeHeapHashSet<Member<XMLHttpRequest>> m_replayXHRs;
     PersistentHeapHashSetWillBeHeapHashSet<Member<XMLHttpRequest>> m_replayXHRsToBeDeleted;
     Timer<InspectorResourceAgent> m_removeFinishedReplayXHRTimer;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorResourceAgent_h)