Convert //cc from scoped_ptr to std::unique_ptr.

cc/output/texture_mailbox_deleter.h

Index: cc/output/texture_mailbox_deleter.h
diff --git a/cc/output/texture_mailbox_deleter.h b/cc/output/texture_mailbox_deleter.h
index 3ff91d40ebb803b0739d2b0e74ffa64f18b8158b..c4fbf0b5136f3d46073179569970df2657b67060 100644
--- a/cc/output/texture_mailbox_deleter.h
+++ b/cc/output/texture_mailbox_deleter.h
@@ -5,9 +5,9 @@
 #ifndef CC_OUTPUT_TEXTURE_MAILBOX_DELETER_H_
 #define CC_OUTPUT_TEXTURE_MAILBOX_DELETER_H_
 
+#include <memory>
 #include <vector>
 
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "cc/base/cc_export.h"
 
@@ -38,7 +38,7 @@ class CC_EXPORT TextureMailboxDeleter {
   // due to the compositor shutting down, then the ReleaseCallback will
   // become a no-op and the texture will be deleted immediately on the
   // impl thread, along with dropping the reference to the ContextProvider.
-  scoped_ptr<SingleReleaseCallback> GetReleaseCallback(
+  std::unique_ptr<SingleReleaseCallback> GetReleaseCallback(
       scoped_refptr<ContextProvider> context_provider,
       unsigned texture_id);
 
@@ -50,7 +50,7 @@ class CC_EXPORT TextureMailboxDeleter {
                                     bool is_lost);
 
   scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner_;
-  std::vector<scoped_ptr<SingleReleaseCallback>> impl_callbacks_;
+  std::vector<std::unique_ptr<SingleReleaseCallback>> impl_callbacks_;
   base::WeakPtrFactory<TextureMailboxDeleter> weak_ptr_factory_;
 };