Add webkit to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 622 insertions, 0 deletions

diff --git a/webkit/tools/npapi_layout_test_plugin/PluginObject.cpp b/webkit/tools/npapi_layout_test_plugin/PluginObject.cpp
new file mode 100644
index 0000000..b012f58
--- /dev/null
+++ b/webkit/tools/npapi_layout_test_plugin/PluginObject.cpp
@@ -0,0 +1,622 @@
+/*
+ IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
+ consideration of your agreement to the following terms, and your use, installation, 
+ modification or redistribution of this Apple software constitutes acceptance of these 
+ terms.  If you do not agree with these terms, please do not use, install, modify or 
+ redistribute this Apple software.
+ 
+ In consideration of your agreement to abide by the following terms, and subject to these 
+ terms, Apple grants you a personal, non-exclusive license, under Apple’s copyrights in 
+ this original Apple software (the "Apple Software"), to use, reproduce, modify and 
+ redistribute the Apple Software, with or without modifications, in source and/or binary 
+ forms; provided that if you redistribute the Apple Software in its entirety and without 
+ modifications, you must retain this notice and the following text and disclaimers in all 
+ such redistributions of the Apple Software.  Neither the name, trademarks, service marks 
+ or logos of Apple Computer, Inc. may be used to endorse or promote products derived from 
+ the Apple Software without specific prior written permission from Apple. Except as expressly
+ stated in this notice, no other rights or licenses, express or implied, are granted by Apple
+ herein, including but not limited to any patent rights that may be infringed by your 
+ derivative works or by other works in which the Apple Software may be incorporated.
+ 
+ The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO WARRANTIES, 
+ EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, 
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS 
+ USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+ 
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL 
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 
+ OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, 
+ REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND 
+ WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR 
+ OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "PluginObject.h"
+
+#include "TestObject.h"
+#include <assert.h>
+#include <stdio.h>
+#ifdef WIN32
+#include <stdlib.h>
+#define snprintf sprintf_s
+#endif
+
+static void pluginInvalidate(NPObject *obj);
+static bool pluginHasProperty(NPObject *obj, NPIdentifier name);
+static bool pluginHasMethod(NPObject *obj, NPIdentifier name);
+static bool pluginGetProperty(NPObject *obj, NPIdentifier name, NPVariant *variant);
+static bool pluginSetProperty(NPObject *obj, NPIdentifier name, const NPVariant *variant);
+static bool pluginInvoke(NPObject *obj, NPIdentifier name, const NPVariant *args, uint32_t argCount, NPVariant *result);
+static bool pluginInvokeDefault(NPObject *obj, const NPVariant *args, uint32_t argCount, NPVariant *result);
+static NPObject *pluginAllocate(NPP npp, NPClass *theClass);
+static void pluginDeallocate(NPObject *obj);
+
+NPNetscapeFuncs *browser;
+
+static NPClass pluginClass = { 
+    NP_CLASS_STRUCT_VERSION,
+    pluginAllocate, 
+    pluginDeallocate, 
+    pluginInvalidate,
+    pluginHasMethod,
+    pluginInvoke,
+    pluginInvokeDefault,
+    pluginHasProperty,
+    pluginGetProperty,
+    pluginSetProperty,
+};
+ 
+NPClass *getPluginClass(void)
+{
+    return &pluginClass;
+}
+
+static bool identifiersInitialized = false;
+
+#define ID_PROPERTY_PROPERTY        0
+#define ID_PROPERTY_EVENT_LOGGING   1
+#define ID_PROPERTY_HAS_STREAM      2
+#define ID_PROPERTY_TEST_OBJECT     3
+#define ID_PROPERTY_LOG_DESTROY     4
+#define ID_PROPERTY_TEST_OBJECT_COUNT 5
+#define NUM_PROPERTY_IDENTIFIERS    6
+
+static NPIdentifier pluginPropertyIdentifiers[NUM_PROPERTY_IDENTIFIERS];
+static const NPUTF8 *pluginPropertyIdentifierNames[NUM_PROPERTY_IDENTIFIERS] = {
+    "property",
+    "eventLoggingEnabled",
+    "hasStream",
+    "testObject",
+    "logDestroy",
+    "testObjectCount",
+};
+
+#define ID_TEST_CALLBACK_METHOD     0
+#define ID_TEST_GETURL              1
+#define ID_REMOVE_DEFAULT_METHOD    2
+#define ID_TEST_DOM_ACCESS          3
+#define ID_TEST_GET_URL_NOTIFY      4
+#define ID_TEST_INVOKE_DEFAULT      5
+#define ID_DESTROY_STREAM           6
+#define ID_TEST_ENUMERATE           7
+#define ID_TEST_GETINTIDENTIFIER    8
+#define ID_TEST_GET_PROPERTY        9
+#define ID_TEST_EVALUATE            10
+#define ID_TEST_GET_PROPERTY_RETURN_VALUE 11
+#define ID_TEST_CALLBACK_METHOD_RET 12
+#define ID_TEST_CREATE_TEST_OBJECT  13
+#define ID_TEST_PASS_TEST_OBJECT    14
+#define ID_TEST_CLONE_OBJECT        15
+#define ID_TEST_SCRIPT_OBJECT_INVOKE 16
+#define NUM_METHOD_IDENTIFIERS      17
+
+static NPIdentifier pluginMethodIdentifiers[NUM_METHOD_IDENTIFIERS];
+static const NPUTF8 *pluginMethodIdentifierNames[NUM_METHOD_IDENTIFIERS] = {
+    "testCallback",
+    "getURL",
+    "removeDefaultMethod",
+    "testDOMAccess",
+    "getURLNotify",
+    "testInvokeDefault",
+    "destroyStream",
+    "testEnumerate",
+    "testGetIntIdentifier",
+    "testGetProperty",
+    "testEvaluate",
+    "testGetPropertyReturnValue",
+    "testCallbackRet",       // Chrome bug 897451
+    "testCreateTestObject",  // Chrome bug 1093606
+    "testPassTestObject",    // Chrome bug 1093606
+    "testCloneObject",
+    "testScriptObjectInvoke", // Chrome bug 1175346
+};
+
+static NPUTF8* createCStringFromNPVariant(const NPVariant *variant)
+{
+    size_t length = NPVARIANT_TO_STRING(*variant).UTF8Length;
+    NPUTF8* result = (NPUTF8*)malloc(length + 1);
+    memcpy(result, NPVARIANT_TO_STRING(*variant).UTF8Characters, length);
+    result[length] = '\0';
+    return result;
+}
+
+static void initializeIdentifiers(void)
+{
+    browser->getstringidentifiers(pluginPropertyIdentifierNames, NUM_PROPERTY_IDENTIFIERS, pluginPropertyIdentifiers);
+    browser->getstringidentifiers(pluginMethodIdentifierNames, NUM_METHOD_IDENTIFIERS, pluginMethodIdentifiers);
+}
+
+static bool pluginHasProperty(NPObject *obj, NPIdentifier name)
+{
+    for (int i = 0; i < NUM_PROPERTY_IDENTIFIERS; i++)
+        if (name == pluginPropertyIdentifiers[i])
+            return true;
+    return false;
+}
+
+static bool pluginHasMethod(NPObject *obj, NPIdentifier name)
+{
+    for (int i = 0; i < NUM_METHOD_IDENTIFIERS; i++)
+        if (name == pluginMethodIdentifiers[i])
+            return true;
+    return false;
+}
+
+static bool pluginGetProperty(NPObject *obj, NPIdentifier name, NPVariant *variant)
+{
+    if (name == pluginPropertyIdentifiers[ID_PROPERTY_PROPERTY]) {
+        char* mem = static_cast<char*>(browser->memalloc(9));
+        strcpy(mem, "property");
+        STRINGZ_TO_NPVARIANT(mem, *variant);
+        return true;
+    } else if (name == pluginPropertyIdentifiers[ID_PROPERTY_EVENT_LOGGING]) {
+        BOOLEAN_TO_NPVARIANT(((PluginObject *)obj)->eventLogging, *variant);
+        return true;
+    } else if (name == pluginPropertyIdentifiers[ID_PROPERTY_LOG_DESTROY]) {
+        BOOLEAN_TO_NPVARIANT(((PluginObject *)obj)->logDestroy, *variant);
+        return true;            
+    } else if (name == pluginPropertyIdentifiers[ID_PROPERTY_HAS_STREAM]) {
+        BOOLEAN_TO_NPVARIANT(((PluginObject *)obj)->stream != 0, *variant);
+        return true;
+    } else if (name == pluginPropertyIdentifiers[ID_PROPERTY_TEST_OBJECT]) {
+        NPObject *testObject = ((PluginObject *)obj)->testObject;
+        browser->retainobject(testObject);
+        OBJECT_TO_NPVARIANT(testObject, *variant);
+        return true;
+    } else if (name == pluginPropertyIdentifiers[ID_PROPERTY_TEST_OBJECT_COUNT]) {
+        INT32_TO_NPVARIANT(getTestObjectCount(), *variant);
+        return true;
+    }
+    return false;
+}
+
+static bool pluginSetProperty(NPObject *obj, NPIdentifier name, const NPVariant *variant)
+{
+    if (name == pluginPropertyIdentifiers[ID_PROPERTY_EVENT_LOGGING]) {
+        ((PluginObject *)obj)->eventLogging = NPVARIANT_TO_BOOLEAN(*variant);
+        return true;
+    } else if (name == pluginPropertyIdentifiers[ID_PROPERTY_LOG_DESTROY]) {
+        ((PluginObject *)obj)->logDestroy = NPVARIANT_TO_BOOLEAN(*variant);
+        return true;
+    }
+    
+    return false;
+}
+
+static void testDOMAccess(PluginObject *obj)
+{
+    // Get plug-in's DOM element
+    NPObject *elementObject;
+    if (browser->getvalue(obj->npp, NPNVPluginElementNPObject, &elementObject) == NPERR_NO_ERROR) {
+        // Get style
+        NPVariant styleVariant;
+        NPIdentifier styleIdentifier = browser->getstringidentifier("style");
+        if (browser->getproperty(obj->npp, elementObject, styleIdentifier, &styleVariant) && NPVARIANT_IS_OBJECT(styleVariant)) {
+            // Set style.border
+            NPIdentifier borderIdentifier = browser->getstringidentifier("border");
+            NPVariant borderVariant;
+            STRINGZ_TO_NPVARIANT("3px solid red", borderVariant);
+            browser->setproperty(obj->npp, NPVARIANT_TO_OBJECT(styleVariant), borderIdentifier, &borderVariant);
+            browser->releasevariantvalue(&styleVariant);
+        }
+        
+        browser->releaseobject(elementObject);
+    }
+}
+
+static bool pluginInvoke(NPObject *header, NPIdentifier name, const NPVariant *args, uint32_t argCount, NPVariant *result)
+{
+    PluginObject *obj = (PluginObject *)header;
+    if (name == pluginMethodIdentifiers[ID_TEST_CALLBACK_METHOD]) {
+        // call whatever method name we're given
+        if (argCount > 0 && NPVARIANT_IS_STRING(args[0])) {
+            NPObject *windowScriptObject;
+            browser->getvalue(obj->npp, NPNVWindowNPObject, &windowScriptObject);
+
+            NPUTF8* callbackString = createCStringFromNPVariant(&args[0]);
+            NPIdentifier callbackIdentifier = browser->getstringidentifier(callbackString);
+            free(callbackString);
+
+            NPVariant browserResult;
+            browser->invoke(obj->npp, windowScriptObject, callbackIdentifier, 0, 0, &browserResult);
+            browser->releasevariantvalue(&browserResult);
+
+            VOID_TO_NPVARIANT(*result);
+            return true;
+        }
+    } else if (name == pluginMethodIdentifiers[ID_TEST_GETURL]) {
+        if (argCount == 2 && NPVARIANT_IS_STRING(args[0]) && NPVARIANT_IS_STRING(args[1])) {
+            NPUTF8* urlString = createCStringFromNPVariant(&args[0]);
+            NPUTF8* targetString = createCStringFromNPVariant(&args[1]);
+            browser->geturl(obj->npp, urlString, targetString);
+            free(urlString);
+            free(targetString);
+
+            VOID_TO_NPVARIANT(*result);
+            return true;
+        } else if (argCount == 1 && NPVARIANT_IS_STRING(args[0])) {
+            NPUTF8* urlString = createCStringFromNPVariant(&args[0]);
+            browser->geturl(obj->npp, urlString, 0);
+            free(urlString);
+
+            VOID_TO_NPVARIANT(*result);
+            return true;
+        }
+    } else if (name == pluginMethodIdentifiers[ID_REMOVE_DEFAULT_METHOD]) {
+        pluginClass.invokeDefault = 0;
+        VOID_TO_NPVARIANT(*result);
+        return true;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_DOM_ACCESS]) {
+        testDOMAccess(obj);
+        VOID_TO_NPVARIANT(*result);
+        return true;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_GET_URL_NOTIFY]) {
+        if (argCount == 3
+          && NPVARIANT_IS_STRING(args[0])
+          && (NPVARIANT_IS_STRING(args[1]) || NPVARIANT_IS_NULL(args[1]))
+          && NPVARIANT_IS_STRING(args[2])) {
+            NPUTF8* urlString = createCStringFromNPVariant(&args[0]);
+            NPUTF8* targetString = (NPVARIANT_IS_STRING(args[1]) ? createCStringFromNPVariant(&args[1]) : NULL);
+            NPUTF8* callbackString = createCStringFromNPVariant(&args[2]);
+            
+            NPIdentifier callbackIdentifier = browser->getstringidentifier(callbackString);
+            browser->geturlnotify(obj->npp, urlString, targetString, callbackIdentifier);
+
+            free(urlString);
+            free(targetString);
+            free(callbackString);
+            
+            VOID_TO_NPVARIANT(*result);
+            return true;
+        }
+    } else if (name == pluginMethodIdentifiers[ID_TEST_INVOKE_DEFAULT] && NPVARIANT_IS_OBJECT(args[0])) {
+        NPObject *callback = NPVARIANT_TO_OBJECT(args[0]);
+        
+        NPVariant args[1];
+        NPVariant browserResult;
+        
+        STRINGZ_TO_NPVARIANT("test", args[0]);
+        bool retval = browser->invokeDefault(obj->npp, callback, args, 1, &browserResult);
+        
+        if (retval)
+            browser->releasevariantvalue(&browserResult);
+        
+        BOOLEAN_TO_NPVARIANT(retval, *result);
+        return true;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_ENUMERATE]) {
+        if (argCount == 2 && NPVARIANT_IS_OBJECT(args[0]) && NPVARIANT_IS_OBJECT(args[1])) {
+            uint32_t count;            
+            NPIdentifier* identifiers;
+
+            if (browser->enumerate(obj->npp, NPVARIANT_TO_OBJECT(args[0]), &identifiers, &count)) {
+                NPObject* outArray = NPVARIANT_TO_OBJECT(args[1]);
+                NPIdentifier pushIdentifier = browser->getstringidentifier("push");
+                
+                for (uint32_t i = 0; i < count; i++) {
+                    NPUTF8* string = browser->utf8fromidentifier(identifiers[i]);
+                    
+                    if (!string)
+                        continue;
+                                        
+                    NPVariant args[1];
+                    STRINGZ_TO_NPVARIANT(string, args[0]);
+                    NPVariant browserResult;
+                    browser->invoke(obj->npp, outArray, pushIdentifier, args, 1, &browserResult);
+                    browser->releasevariantvalue(&browserResult);
+                    browser->memfree(string);
+                }
+                
+                browser->memfree(identifiers);
+            }
+            
+            VOID_TO_NPVARIANT(*result);
+            return true;            
+        }
+        return false;
+    } else if (name == pluginMethodIdentifiers[ID_DESTROY_STREAM]) {
+        NPError npError = browser->destroystream(obj->npp, obj->stream, NPRES_USER_BREAK);
+        INT32_TO_NPVARIANT(npError, *result);
+        return true;        
+    } else if (name == pluginMethodIdentifiers[ID_TEST_GETINTIDENTIFIER]) {
+        if (argCount == 1 && NPVARIANT_IS_DOUBLE(args[0])) {
+            NPIdentifier identifier = browser->getintidentifier((int)NPVARIANT_TO_DOUBLE(args[0]));
+            INT32_TO_NPVARIANT((int32)identifier, *result);
+            return true;
+        }
+    } else if (name == pluginMethodIdentifiers[ID_TEST_EVALUATE] && 
+               argCount == 1 && NPVARIANT_IS_STRING(args[0])) {
+        NPObject *windowScriptObject;
+        browser->getvalue(obj->npp, NPNVWindowNPObject, &windowScriptObject);
+
+        NPString s = NPVARIANT_TO_STRING(args[0]);
+        
+        bool retval = browser->evaluate(obj->npp, windowScriptObject, &s, result);
+        browser->releaseobject(windowScriptObject);
+        return retval;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_GET_PROPERTY] &&
+               argCount > 0) {
+        NPObject *object;
+        browser->getvalue(obj->npp, NPNVWindowNPObject, &object);
+
+        for (uint32_t i = 0; i < argCount; i++) {
+            assert(NPVARIANT_IS_STRING(args[i]));
+            NPUTF8* propertyString = createCStringFromNPVariant(&args[i]);
+            NPIdentifier propertyIdentifier = browser->getstringidentifier(propertyString);
+            free(propertyString);
+            
+            NPVariant variant;
+            bool retval = browser->getproperty(obj->npp, object, propertyIdentifier, &variant);
+            browser->releaseobject(object);
+            
+            if (!retval)
+                break;
+            
+            if (i + 1 < argCount) {
+                assert(NPVARIANT_IS_OBJECT(variant));
+                object = NPVARIANT_TO_OBJECT(variant);
+            } else {                
+                *result = variant;
+                return true;
+            }
+        }
+        
+        VOID_TO_NPVARIANT(*result);
+        return false;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_GET_PROPERTY_RETURN_VALUE] &&
+        argCount == 2 && NPVARIANT_IS_OBJECT(args[0]) && NPVARIANT_IS_STRING(args[1])) {
+        NPUTF8* propertyString = createCStringFromNPVariant(&args[1]);
+        NPIdentifier propertyIdentifier = browser->getstringidentifier(propertyString);
+        free(propertyString);
+
+        NPVariant variant;
+        bool retval = browser->getproperty(obj->npp, NPVARIANT_TO_OBJECT(args[0]), propertyIdentifier, &variant);
+        if (retval)
+            browser->releasevariantvalue(&variant);
+
+        BOOLEAN_TO_NPVARIANT(retval, *result);
+        return true;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_CALLBACK_METHOD_RET]) {
+        // call whatever method name we're given, and pass it the 'window' obj.
+        // we expect the function to return its argument.
+        if (argCount > 0 && NPVARIANT_IS_STRING(args[0])) {
+            NPObject *windowScriptObject;
+            browser->getvalue(obj->npp, NPNVWindowNPObject, &windowScriptObject);
+
+            NPUTF8* callbackString = createCStringFromNPVariant(&args[0]);
+            NPIdentifier callbackIdentifier = browser->getstringidentifier(callbackString);
+            free(callbackString);
+
+            NPVariant callbackArgs[1];
+            OBJECT_TO_NPVARIANT(windowScriptObject, callbackArgs[0]);
+
+            NPVariant browserResult;
+            browser->invoke(obj->npp, windowScriptObject, callbackIdentifier,
+                            callbackArgs, 1, &browserResult);
+
+            if (NPVARIANT_IS_OBJECT(browserResult)) {
+                // Now return the callbacks return value back to our caller.
+                // BUG 897451: This should be the same as the
+                // windowScriptObject, but its not (in Chrome) - or at least, it
+                // has a different refcount. This means Chrome will delete the
+                // object before returning it and the calling JS gets a garbage
+                // value.  Firefox handles it fine.
+                OBJECT_TO_NPVARIANT(NPVARIANT_TO_OBJECT(browserResult), *result);
+            } else {                
+                browser->releasevariantvalue(&browserResult);
+                VOID_TO_NPVARIANT(*result);
+            }
+
+            return true;
+        }
+    } else if (name == pluginMethodIdentifiers[ID_TEST_CREATE_TEST_OBJECT]) {
+        NPObject *testObject = browser->createobject(obj->npp, getTestClass());
+        assert(testObject->referenceCount == 1);
+        OBJECT_TO_NPVARIANT(testObject, *result);
+        return true;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_PASS_TEST_OBJECT]) {
+        // call whatever method name we're given, and pass it our second
+        // argument.
+        if (argCount > 1 && NPVARIANT_IS_STRING(args[0])) {
+            NPObject *windowScriptObject;
+            browser->getvalue(obj->npp, NPNVWindowNPObject, &windowScriptObject);
+
+            NPUTF8* callbackString = createCStringFromNPVariant(&args[0]);
+            NPIdentifier callbackIdentifier = browser->getstringidentifier(callbackString);
+            free(callbackString);
+
+            NPVariant browserResult;
+            browser->invoke(obj->npp, windowScriptObject, callbackIdentifier, &args[1], 1, &browserResult);
+            browser->releasevariantvalue(&browserResult);
+
+            VOID_TO_NPVARIANT(*result);
+            return true;
+        }
+    } else if (name == pluginMethodIdentifiers[ID_TEST_CLONE_OBJECT]) {
+        // Create another instance of the same class
+        NPObject *new_object = browser->createobject(obj->npp, &pluginClass);
+        assert(new_object->referenceCount == 1);
+        OBJECT_TO_NPVARIANT(new_object, *result);
+        return true;
+    } else if (name == pluginMethodIdentifiers[ID_TEST_SCRIPT_OBJECT_INVOKE]) {
+        if (argCount > 1 && NPVARIANT_IS_STRING(args[0])) {
+            // Invoke a script callback to get a script NPObject. Then call
+            // a method on the script NPObject passing it a freshly created
+            // NPObject.
+            // Arguments:
+            // arg1:  Callback that returns a script object.
+            // arg2:  Name of the method to call on the script object returned 
+            //        from the callback
+            NPObject *windowScriptObject;
+            browser->getvalue(obj->npp, NPNVWindowNPObject, 
+                              &windowScriptObject);
+
+            // Arg1 is the name of the callback
+            NPUTF8* callbackString = createCStringFromNPVariant(&args[0]);
+            NPIdentifier callbackIdentifier = 
+                  browser->getstringidentifier(callbackString);
+            free(callbackString);
+
+            // Invoke a callback that returns a script object
+            NPVariant object_result;
+            browser->invoke(obj->npp, windowScriptObject, callbackIdentifier, 
+                            &args[1], 1, &object_result);
+
+            // Script object returned
+            NPObject *script_object = object_result.value.objectValue;
+
+            // Arg2 is the name of the method to be called on the script object
+            NPUTF8* object_mehod_string = createCStringFromNPVariant(&args[1]);
+            NPIdentifier object_method = 
+                browser->getstringidentifier(object_mehod_string);
+            free(object_mehod_string);
+
+            // Create a fresh NPObject to be passed as an argument
+            NPObject *object_arg = browser->createobject(obj->npp, &pluginClass);
+            NPVariant invoke_args[1];
+            OBJECT_TO_NPVARIANT(object_arg, invoke_args[0]);
+
+            // Invoke the script method
+            NPVariant object_method_result;
+            browser->invoke(obj->npp, script_object, object_method,
+                            invoke_args, 1, &object_method_result);
+
+            browser->releasevariantvalue(&object_result);
+            VOID_TO_NPVARIANT(*result);
+            if (NPVARIANT_IS_OBJECT(object_method_result)) {
+                // Now return the callbacks return value back to our caller.
+                // BUG 897451: This should be the same as the
+                // windowScriptObject, but its not (in Chrome) - or at least, it
+                // has a different refcount. This means Chrome will delete the
+                // object before returning it and the calling JS gets a garbage
+                // value.  Firefox handles it fine.
+                OBJECT_TO_NPVARIANT(NPVARIANT_TO_OBJECT(object_method_result),
+                                    *result);
+            } else {                
+                browser->releasevariantvalue(&object_method_result);
+                VOID_TO_NPVARIANT(*result);
+            }
+            return true;
+        }
+    }
+    return false;
+}
+
+static bool pluginInvokeDefault(NPObject *obj, const NPVariant *args, uint32_t argCount, NPVariant *result)
+{
+    INT32_TO_NPVARIANT(1, *result);
+    return true;
+}
+
+static void pluginInvalidate(NPObject *obj)
+{
+}
+
+static NPObject *pluginAllocate(NPP npp, NPClass *theClass)
+{
+    PluginObject *newInstance = (PluginObject*)malloc(sizeof(PluginObject));
+    
+    if (!identifiersInitialized) {
+        identifiersInitialized = true;
+        initializeIdentifiers();
+    }
+
+    newInstance->npp = npp;
+    newInstance->testObject = browser->createobject(npp, getTestClass());
+    newInstance->eventLogging = FALSE;
+    newInstance->logDestroy = FALSE;
+    newInstance->logSetWindow = FALSE;
+    newInstance->returnErrorFromNewStream = FALSE;
+    newInstance->stream = 0;
+    
+    newInstance->firstUrl = NULL;
+    newInstance->firstHeaders = NULL;
+    newInstance->lastUrl = NULL;
+    newInstance->lastHeaders = NULL;
+    
+    return (NPObject *)newInstance;
+}
+
+static void pluginDeallocate(NPObject *header) 
+{
+    PluginObject* obj = (PluginObject*)header;
+    
+    browser->releaseobject(obj->testObject);
+
+    free(obj->firstUrl);
+    free(obj->firstHeaders);
+    free(obj->lastUrl);
+    free(obj->lastHeaders);
+
+    free(obj);
+}
+
+void handleCallback(PluginObject* object, const char *url, NPReason reason, void *notifyData)
+{
+    assert(object);
+    
+    NPVariant args[2];
+    
+    NPObject *windowScriptObject;
+    browser->getvalue(object->npp, NPNVWindowNPObject, &windowScriptObject);
+    
+    NPIdentifier callbackIdentifier = notifyData;
+
+    INT32_TO_NPVARIANT(reason, args[0]);
+
+    char *strHdr = NULL;
+    if (object->firstUrl && object->firstHeaders && object->lastUrl && object->lastHeaders) {
+        // Format expected by JavaScript validator: four fields separated by \n\n:
+        // First URL; first header block; last URL; last header block.
+        // Note that header blocks already end with \n due to how NPStream::headers works.
+        int len = strlen(object->firstUrl) + 2
+            + strlen(object->firstHeaders) + 1
+            + strlen(object->lastUrl) + 2
+            + strlen(object->lastHeaders) + 1;
+        strHdr = (char*)malloc(len + 1);
+        snprintf(strHdr, len + 1, "%s\n\n%s\n%s\n\n%s\n",
+                 object->firstUrl, object->firstHeaders, object->lastUrl, object->lastHeaders);
+        STRINGN_TO_NPVARIANT(strHdr, len, args[1]);
+    } else
+        NULL_TO_NPVARIANT(args[1]);
+
+    NPVariant browserResult;
+    browser->invoke(object->npp, windowScriptObject, callbackIdentifier, args, 2, &browserResult);
+    browser->releasevariantvalue(&browserResult);
+
+    free(strHdr);
+}
+
+void notifyStream(PluginObject* object, const char *url, const char *headers)
+{
+    if (object->firstUrl == NULL) {
+        if (url)
+            object->firstUrl = strdup(url);
+        if (headers)
+            object->firstHeaders = strdup(headers);
+    } else {
+        free(object->lastUrl);
+        free(object->lastHeaders);
+        object->lastUrl = (url ? strdup(url) : NULL);
+        object->lastHeaders = (headers ? strdup(headers) : NULL);
+    }
+}