Remove OwnPtr from Blink.

third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.cpp

Index: third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.cpp b/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.cpp
index cb2d9b1158971a96cff76f152a1fb4f90688a073..3aaf96576951b1f0e69693a69e31e8ad6314ad76 100644
--- a/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.cpp
+++ b/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.cpp
@@ -8,7 +8,8 @@
 #include "cc/trees/layer_tree_impl.h"
 #include "platform/graphics/CompositorMutableState.h"
 #include "platform/graphics/CompositorMutation.h"
-#include "wtf/PassOwnPtr.h"
+#include "wtf/PtrUtil.h"
+#include <memory>
 
 namespace blink {
 
@@ -20,7 +21,7 @@ CompositorMutableStateProvider::CompositorMutableStateProvider(cc::LayerTreeImpl
 
 CompositorMutableStateProvider::~CompositorMutableStateProvider() {}
 
-PassOwnPtr<CompositorMutableState>
+std::unique_ptr<CompositorMutableState>
 CompositorMutableStateProvider::getMutableStateFor(uint64_t element_id)
 {
     cc::LayerTreeImpl::ElementLayers layers = m_state->GetMutableLayers(element_id);
@@ -35,9 +36,9 @@ CompositorMutableStateProvider::getMutableStateFor(uint64_t element_id)
 
     // Only if this is a new entry do we want to allocate a new mutation.
     if (result.isNewEntry)
-        result.storedValue->value = adoptPtr(new CompositorMutation);
+        result.storedValue->value = wrapUnique(new CompositorMutation);
 
-    return adoptPtr(new CompositorMutableState(result.storedValue->value.get(), layers.main, layers.scroll));
+    return wrapUnique(new CompositorMutableState(result.storedValue->value.get(), layers.main, layers.scroll));
 }
 
 } // namespace blink