Optimize posting of WTF::Closure and improve scheduler test mocks

third_party/WebKit/Source/core/fetch/ResourceFetcherTest.cpp

Index: third_party/WebKit/Source/core/fetch/ResourceFetcherTest.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ResourceFetcherTest.cpp b/third_party/WebKit/Source/core/fetch/ResourceFetcherTest.cpp
index f8ed1a276f6740d4ebcd09808ce2a8e17073f446..9f748b065c1532afcb9df30f011593bba130eb7c 100644
--- a/third_party/WebKit/Source/core/fetch/ResourceFetcherTest.cpp
+++ b/third_party/WebKit/Source/core/fetch/ResourceFetcherTest.cpp
@@ -42,6 +42,7 @@
 #include "platform/heap/Member.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/network/ResourceTimingInfo.h"
+#include "platform/scheduler/test/fake_web_task_runner.h"
 #include "platform/testing/URLTestHelpers.h"
 #include "platform/testing/weburl_loader_mock.h"
 #include "platform/weborigin/KURL.h"
@@ -58,20 +59,8 @@
 namespace blink {
 
 namespace {
-
 const char testImageFilename[] = "white-1x1.png";
 const int testImageSize = 103; // size of web/tests/data/white-1x1.png
-
-class MockTaskRunner : public blink::WebTaskRunner {
-    void postTask(const WebTraceLocation&, Task*) override { }
-    void postDelayedTask(const WebTraceLocation&, Task*, double) override { }
-    bool runsTasksOnCurrentThread() override { return true; }
-    std::unique_ptr<WebTaskRunner> clone() override { return nullptr; }
-    double virtualTimeSeconds() const override { return 0.0; }
-    double monotonicallyIncreasingVirtualTimeSeconds() const override { return 0.0; }
-    SingleThreadTaskRunner* taskRunner() override { return nullptr; }
-};
-
 }
 
 class ResourceFetcherTestMockFetchContext : public FetchContext {
@@ -99,13 +88,13 @@ public:
 private:
     ResourceFetcherTestMockFetchContext()
         : m_policy(CachePolicyVerify)
-        , m_runner(wrapUnique(new MockTaskRunner))
+        , m_runner(wrapUnique(new scheduler::FakeWebTaskRunner))
         , m_complete(false)
         , m_transferSize(-1)
     { }
 
     CachePolicy m_policy;
-    std::unique_ptr<MockTaskRunner> m_runner;
+    std::unique_ptr<scheduler::FakeWebTaskRunner> m_runner;
     bool m_complete;
     long long m_transferSize;
 };