Make SharedBuffer in Resource non-discardable and remove PurgeableVector

third_party/WebKit/Source/core/fetch/Resource.cpp

Index: third_party/WebKit/Source/core/fetch/Resource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/Resource.cpp b/third_party/WebKit/Source/core/fetch/Resource.cpp
index c582f1ee2d347ce4427ff2c2fd6ae31a6dc03b62..b0e3b16aa89730766ae54bdf752317c396e2a2cd 100644
--- a/third_party/WebKit/Source/core/fetch/Resource.cpp
+++ b/third_party/WebKit/Source/core/fetch/Resource.cpp
@@ -360,7 +360,7 @@ void Resource::appendData(const char* data, size_t length)
     if (m_data)
         m_data->append(data, length);
     else
-        m_data = SharedBuffer::createPurgeable(data, length);
+        m_data = SharedBuffer::create(data, length);
     setEncodedSize(m_data->size());
 }