cc: Move WorkerPool from cc/base to cc/resources.

cc/resources/worker_pool.h

Index: cc/resources/worker_pool.h
diff --git a/cc/base/worker_pool.h b/cc/resources/worker_pool.h
similarity index 97%
rename from cc/base/worker_pool.h
rename to cc/resources/worker_pool.h
index eeffb56aebc5aa6f43511972291d9c34d690dce2..4fccded715faa9237a6cfc4ac84ee2ff5014f3ce 100644
--- a/cc/base/worker_pool.h
+++ b/cc/resources/worker_pool.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CC_BASE_WORKER_POOL_H_
-#define CC_BASE_WORKER_POOL_H_
+#ifndef CC_RESOURCES_WORKER_POOL_H_
+#define CC_RESOURCES_WORKER_POOL_H_
 
 #include <deque>
 #include <string>
@@ -151,4 +151,4 @@ class CC_EXPORT WorkerPool {
 
 }  // namespace cc
 
-#endif  // CC_BASE_WORKER_POOL_H_
+#endif  // CC_RESOURCES_WORKER_POOL_H_