Wire the scheduler up in TestBlinkWebUnitTestSupport

content/renderer/scheduler/web_scheduler_impl.h

Index: content/renderer/scheduler/web_scheduler_impl.h
diff --git a/content/renderer/scheduler/web_scheduler_impl.h b/content/renderer/scheduler/web_scheduler_impl.h
index dc31c0cce132f182eff15c37dff3228da31fcf71..4f4100251f9241183ccee12009dc70dc9d659d76 100644
--- a/content/renderer/scheduler/web_scheduler_impl.h
+++ b/content/renderer/scheduler/web_scheduler_impl.h
@@ -8,6 +8,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
+#include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebScheduler.h"
 #include "third_party/WebKit/public/platform/WebThread.h"
 
@@ -16,7 +17,7 @@ namespace content {
 class RendererScheduler;
 class SingleThreadIdleTaskRunner;
 
-class WebSchedulerImpl : public blink::WebScheduler {
+class CONTENT_EXPORT WebSchedulerImpl : public blink::WebScheduler {
  public:
   WebSchedulerImpl(RendererScheduler* renderer_scheduler);
   ~WebSchedulerImpl() override;