Delay leak reporting until worker in-process proxies have been finalized.

third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.cpp

Index: third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.cpp
diff --git a/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.cpp b/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.cpp
index fb466aa6afbb68412a65b1d12a9020c3b6dad7f6..29f1480cd9d153c1d275c2580d9d33a0d10f6d62 100644
--- a/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.cpp
+++ b/third_party/WebKit/Source/core/workers/InProcessWorkerMessagingProxy.cpp
@@ -66,6 +66,8 @@ void processMessageOnWorkerGlobalScope(PassRefPtr<SerializedScriptValue> message
     workerObjectProxy->confirmMessageFromWorkerObject(V8GCController::hasPendingActivity(globalScope->thread()->isolate(), scriptContext));
 }
 
+static int s_liveMessagingProxyCount = 0;
+
 } // namespace
 
 InProcessWorkerMessagingProxy::InProcessWorkerMessagingProxy(InProcessWorkerBase* workerObject, WorkerClients* workerClients)
@@ -81,6 +83,7 @@ InProcessWorkerMessagingProxy::InProcessWorkerMessagingProxy(InProcessWorkerBase
 {
     DCHECK(isParentContextThread());
     DCHECK(m_workerObject);
+    s_liveMessagingProxyCount++;
 }
 
 InProcessWorkerMessagingProxy::~InProcessWorkerMessagingProxy()
@@ -89,6 +92,13 @@ InProcessWorkerMessagingProxy::~InProcessWorkerMessagingProxy()
     DCHECK(!m_workerObject);
     if (m_loaderProxy)
         m_loaderProxy->detachProvider(this);
+    s_liveMessagingProxyCount--;
+}
+
+int InProcessWorkerMessagingProxy::proxyCount()
+{
+    DCHECK(isMainThread());
+    return s_liveMessagingProxyCount;
 }
 
 void InProcessWorkerMessagingProxy::startWorkerGlobalScope(const KURL& scriptURL, const String& userAgent, const String& sourceCode)