Make SharedBuffer in Resource non-discardable and remove PurgeableVector

third_party/WebKit/Source/platform/SharedBuffer.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 10 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef SharedBuffer_h
 #define SharedBuffer_h
 
 #include "platform/PlatformExport.h"
-#include "platform/PurgeableVector.h"
 #include "third_party/skia/include/core/SkData.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
+#include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class WebProcessMemoryDump;
 
 class PLATFORM_EXPORT SharedBuffer : public RefCounted<SharedBuffer> {
 public:
     enum : unsigned { kSegmentSize = 0x1000 };
 
@@ skipping 13 matching lines @@
         return adoptRef(new SharedBuffer(data, size));
     }
 
     HAS_STRICTLY_TYPED_ARG
     static PassRefPtr<SharedBuffer> create(const unsigned char* data, STRICTLY_TYPED_ARG(size))
     {
         STRICT_ARG_TYPE(size_t);
         return adoptRef(new SharedBuffer(data, size));
     }
 
-    HAS_STRICTLY_TYPED_ARG
-    static PassRefPtr<SharedBuffer> createPurgeable(const char* data, STRICTLY_TYPED_ARG(size))
-    {
-        STRICT_ARG_TYPE(size_t);
-        return adoptRef(new SharedBuffer(data, size, PurgeableVector::Purgeable));
-    }
-
     static PassRefPtr<SharedBuffer> adoptVector(Vector<char>&);
 
     ~SharedBuffer();
 
     // Calling this function will force internal segmented buffers to be merged
     // into a flat buffer. Use getSomeData() whenever possible for better
     // performance.
     const char* data() const;
 
     size_t size() const;
@@ skipping 60 matching lines @@
     // SkData without merging segmented buffers into a flat buffer.
     sk_sp<SkData> getAsSkData() const;
 
     void onMemoryDump(const String& dumpPrefix, WebProcessMemoryDump*) const;
 
 private:
     SharedBuffer();
     explicit SharedBuffer(size_t);
     SharedBuffer(const char*, size_t);
     SharedBuffer(const unsigned char*, size_t);
-    SharedBuffer(const char*, size_t, PurgeableVector::PurgeableOption);
 
     // See SharedBuffer::data().
     void mergeSegmentsIntoBuffer() const;
 
     void appendInternal(const char* data, size_t);
     bool getAsBytesInternal(void* dest, size_t, size_t) const;
     size_t getSomeDataInternal(const char*& data, size_t position) const;
 
     size_t m_size;
-    mutable PurgeableVector m_buffer;
+    mutable Vector<char> m_buffer;
     mutable Vector<char*> m_segments;
 };
 
 } // namespace blink
 
 #endif // SharedBuffer_h