Merge WebKit at r75993: Initial merge by git.

Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3

1 files changed, 134 insertions, 0 deletions

diff --git a/Source/WebKit2/WebProcess/Plugins/Netscape/NPRuntimeUtilities.cpp b/Source/WebKit2/WebProcess/Plugins/Netscape/NPRuntimeUtilities.cpp
new file mode 100644
index 0000000..20ff478
--- /dev/null
+++ b/Source/WebKit2/WebProcess/Plugins/Netscape/NPRuntimeUtilities.cpp
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2010 Apple Inc. 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 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.
+ */
+
+#include "NPRuntimeUtilities.h"
+
+#include <wtf/text/CString.h>
+
+namespace WebKit {
+
+void* npnMemAlloc(uint32_t size)
+{
+    // We could use fastMalloc here, but there might be plug-ins that mix NPN_MemAlloc/NPN_MemFree with malloc and free,
+    // so having them be equivalent seems like a good idea.
+    return malloc(size);
+}
+
+void npnMemFree(void* ptr)
+{
+    // We could use fastFree here, but there might be plug-ins that mix NPN_MemAlloc/NPN_MemFree with malloc and free,
+    // so having them be equivalent seems like a good idea.
+    free(ptr);
+}
+
+NPString createNPString(const CString& string)
+{
+    char* utf8Characters = npnMemNewArray<char>(string.length());
+    memcpy(utf8Characters, string.data(), string.length());
+
+    NPString npString;
+    npString.UTF8Characters = utf8Characters;
+    npString.UTF8Length = string.length();
+
+    return npString;
+}
+
+NPObject* createNPObject(NPP npp, NPClass* npClass)
+{
+    ASSERT(npClass);
+    
+    NPObject* npObject;
+    if (npClass->allocate)
+        npObject = npClass->allocate(npp, npClass);
+    else
+        npObject = npnMemNew<NPObject>();
+
+    npObject->_class = npClass;
+    npObject->referenceCount = 1;
+    
+    return npObject;
+}
+
+void deallocateNPObject(NPObject* npObject)
+{
+    ASSERT(npObject);
+    if (!npObject)
+        return;
+
+    if (npObject->_class->deallocate)
+        npObject->_class->deallocate(npObject);
+    else
+        npnMemFree(npObject);
+}
+
+void retainNPObject(NPObject* npObject)
+{
+    ASSERT(npObject);
+    if (!npObject)
+        return;
+
+    npObject->referenceCount++;
+}
+
+void releaseNPObject(NPObject* npObject)
+{
+    ASSERT(npObject);
+    if (!npObject)
+        return;
+    
+    ASSERT(npObject->referenceCount >= 1);
+    npObject->referenceCount--;
+    if (!npObject->referenceCount)
+        deallocateNPObject(npObject);
+}
+
+void releaseNPVariantValue(NPVariant* variant)
+{
+    ASSERT(variant);
+    
+    switch (variant->type) {
+    case NPVariantType_Void:
+    case NPVariantType_Null:
+    case NPVariantType_Bool:
+    case NPVariantType_Int32:
+    case NPVariantType_Double:
+        // Nothing to do.
+        break;
+        
+    case NPVariantType_String:
+        npnMemFree(const_cast<NPUTF8*>(variant->value.stringValue.UTF8Characters));
+        variant->value.stringValue.UTF8Characters = 0;
+        variant->value.stringValue.UTF8Length = 0;
+        break;
+    case NPVariantType_Object:
+        releaseNPObject(variant->value.objectValue);
+        variant->value.objectValue = 0;
+        break;
+    }
+
+    variant->type = NPVariantType_Void;
+}
+
+} // namespace WebKit