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

Source/core/inspector/InspectorResourceAgent.cpp

Index: Source/core/inspector/InspectorResourceAgent.cpp
diff --git a/Source/core/inspector/InspectorResourceAgent.cpp b/Source/core/inspector/InspectorResourceAgent.cpp
index 1abfe5b54ab4cc72f619e7984b4a85ad11c79634..da00709a67fb7c85620e7a26b85b737f455ecc28 100644
--- a/Source/core/inspector/InspectorResourceAgent.cpp
+++ b/Source/core/inspector/InspectorResourceAgent.cpp
@@ -85,6 +85,7 @@ static const char extraRequestHeaders[] = "extraRequestHeaders";
 static const char cacheDisabled[] = "cacheDisabled";
 static const char userAgentOverride[] = "userAgentOverride";
 static const char monitoringXHR[] = "monitoringXHR";
+static const char blockedURLs[] = "blockedURLs";
 }
 
 namespace {
@@ -349,6 +350,17 @@ DEFINE_TRACE(InspectorResourceAgent)
     InspectorBaseAgent::trace(visitor);
 }
 
+bool InspectorResourceAgent::shouldBlockRequest(const ResourceRequest& request)
+{
+    String url = request.url().string();
+    RefPtr<JSONObject> blockedURLs = m_state->getObject(ResourceAgentState::blockedURLs);
+    for (const auto& blocked : *blockedURLs) {
+        if (url.contains(blocked.key))
+            return true;
+    }
+    return false;
+}
+
 void InspectorResourceAgent::willSendRequest(unsigned long identifier, DocumentLoader* loader, ResourceRequest& request, const ResourceResponse& redirectResponse, const FetchInitiatorInfo& initiatorInfo)
 {
     // Ignore the request initiated internally.
@@ -864,6 +876,20 @@ void InspectorResourceAgent::getResponseBody(ErrorString* errorString, const Str
     callback->sendFailure("No data found for resource with given identifier");
 }
 
+void InspectorResourceAgent::addBlockedURL(ErrorString*, const String& url)
+{
+    RefPtr<JSONObject> blockedURLs = m_state->getObject(ResourceAgentState::blockedURLs);
+    blockedURLs->setBoolean(url, true);
+    m_state->setObject(ResourceAgentState::blockedURLs, blockedURLs.release());
+}
+
+void InspectorResourceAgent::removeBlockedURL(ErrorString*, const String& url)
+{
+    RefPtr<JSONObject> blockedURLs = m_state->getObject(ResourceAgentState::blockedURLs);
+    blockedURLs->remove(url);
+    m_state->setObject(ResourceAgentState::blockedURLs, blockedURLs.release());
+}
+
 void InspectorResourceAgent::replayXHR(ErrorString*, const String& requestId)
 {
     String actualRequestId = requestId;