Make cc a component

cc/scoped_thread_proxy.h

Index: cc/scoped_thread_proxy.h
diff --git a/cc/scoped_thread_proxy.h b/cc/scoped_thread_proxy.h
index b48f27623c073b9b21d8b548212d6f67ec908962..56d53c70580fb5b3d88fe316494bafa350a9580f 100644
--- a/cc/scoped_thread_proxy.h
+++ b/cc/scoped_thread_proxy.h
@@ -7,6 +7,7 @@
 
 #include "base/memory/ref_counted.h"
 #include "base/callback.h"
+#include "cc/cc_export.h"
 #include "cc/thread.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ -23,7 +24,7 @@ namespace cc {
 // Implementation note: Unlike ScopedRunnableMethodFactory in Chromium, pending tasks are not cancelled by actually
 // destroying the proxy. Instead each pending task holds a reference to the proxy to avoid maintaining an explicit
 // list of outstanding tasks.
-class ScopedThreadProxy : public base::RefCountedThreadSafe<ScopedThreadProxy> {
+class CC_EXPORT ScopedThreadProxy : public base::RefCountedThreadSafe<ScopedThreadProxy> {
 public:
     static scoped_refptr<ScopedThreadProxy> create(cc::Thread* targetThread)
     {