Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/graphics/ContiguousContainer.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ContiguousContainer_h
 #define ContiguousContainer_h
 
 #include "platform/PlatformExport.h"
 #include "wtf/Alignment.h"
 #include "wtf/Allocator.h"
 #include "wtf/Compiler.h"
 #include "wtf/Noncopyable.h"
+#include "wtf/OwnPtr.h"
 #include "wtf/TypeTraits.h"
 #include "wtf/Vector.h"
 #include <cstddef>
 #include <iterator>
-#include <memory>
 #include <utility>
 
 namespace blink {
 
 // ContiguousContainer is a container which stores a list of heterogeneous
 // objects (in particular, of varying sizes), packed next to one another in
 // memory. Objects are never relocated, so it is safe to store pointers to them
 // for the lifetime of the container (unless the object is removed).
 //
 // Memory is allocated in a series of buffers (with exponential growth). When an
@@ skipping 32 matching lines @@
     void clear();
     void swap(ContiguousContainerBase&);
 
     Vector<void*> m_elements;
 
 private:
     class Buffer;
 
     Buffer* allocateNewBufferForNextAllocation(size_t, const char* typeName);
 
-    Vector<std::unique_ptr<Buffer>> m_buffers;
+    Vector<OwnPtr<Buffer>> m_buffers;
     unsigned m_endIndex;
     size_t m_maxObjectSize;
 };
 
 // For most cases, no alignment stricter than pointer alignment is required. If
 // one of the derived classes has stronger alignment requirements (and the
 // static_assert fires), set alignment to the LCM of the derived class
 // alignments. For small structs without pointers, it may be possible to reduce
 // alignment for tighter packing.
 
@@ skipping 130 matching lines @@
         ASSERT(alignedSize % alignment == 0);
         ASSERT(alignedSize >= size);
         ASSERT(alignedSize < size + alignment);
         return alignedSize;
     }
 };
 
 } // namespace blink
 
 #endif // ContiguousContainer_h