diff --git a/LayoutTests/platform/mac/fast/borders/border-radius-huge-assert-expected.png b/LayoutTests/platform/mac/fast/borders/border-radius-huge-assert-expected.png
index 036f02e..51ab95b 100644
Binary files a/LayoutTests/platform/mac/fast/borders/border-radius-huge-assert-expected.png and b/LayoutTests/platform/mac/fast/borders/border-radius-huge-assert-expected.png differ
diff --git a/WebCore/plugins/PluginDatabase.cpp b/WebCore/plugins/PluginDatabase.cpp
index 8626277..e13daff 100644
--- a/WebCore/plugins/PluginDatabase.cpp
+++ b/WebCore/plugins/PluginDatabase.cpp
@@ -47,6 +47,14 @@ PluginDatabase* PluginDatabase::installedPlugins()
     return plugins;
 }
 
+void PluginDatabase::clear()
+{
+    Vector<PluginPackage*>::iterator pluginsEnd = plugins().end();
+
+    for (Vector<PluginPackage*>::iterator it = plugins().begin(); it != pluginsEnd; ++it)
+        remove(*it);
+}
+
 bool PluginDatabase::isMIMETypeRegistered(const String& mimeType)
 {
     if (mimeType.isNull())
diff --git a/WebCore/plugins/PluginDatabase.h b/WebCore/plugins/PluginDatabase.h
index 58839a2..7dd423b 100644
--- a/WebCore/plugins/PluginDatabase.h
+++ b/WebCore/plugins/PluginDatabase.h
@@ -48,6 +48,7 @@ namespace WebCore {
         static PluginDatabase* installedPlugins();
 
         bool refresh();
+        void clear();
         Vector<PluginPackage*> plugins() const;
         bool isMIMETypeRegistered(const String& mimeType);
         void addExtraPluginDirectory(const String&);
@@ -57,9 +58,9 @@ namespace WebCore {
 
         PluginPackage* findPlugin(const KURL&, String& mimeType);
 
-    private:
         void setPluginDirectories(const Vector<String>& directories) { m_pluginDirectories = directories; }
 
+    private:
         void getPluginPathsInDirectories(HashSet<String>&) const;
         void getDeletedPlugins(PluginSet&) const;
 
diff --git a/WebKit/qt/Api/qwebpage.cpp b/WebKit/qt/Api/qwebpage.cpp
index 84753bd..726b22c 100644
--- a/WebKit/qt/Api/qwebpage.cpp
+++ b/WebKit/qt/Api/qwebpage.cpp
@@ -59,6 +59,7 @@
 #include "Scrollbar.h"
 #include "PlatformKeyboardEvent.h"
 #include "PlatformWheelEvent.h"
+#include "PluginDatabase.h"
 #include "ProgressTracker.h"
 #include "RefPtr.h"
 #include "HashMap.h"
@@ -99,6 +100,24 @@
 
 using namespace WebCore;
 
+void QWEBKIT_EXPORT qt_drt_overwritePluginDirectories()
+{
+    PluginDatabase *db = PluginDatabase::installedPlugins();
+
+    Vector<String> paths;
+    String qtPath(getenv("QTWEBKIT_PLUGIN_PATH"));
+    qtPath.split(UChar(':'), /* allowEmptyEntries */ false, paths);
+
+    db->clear();
+
+    qWarning("CLEAR!");
+
+    db->setPluginDirectories(paths);
+    db->refresh();
+
+    qWarning("REFRESH");
+}
+
 bool QWebPagePrivate::drtRun = false;
 void QWEBKIT_EXPORT qt_drt_run(bool b)
 {
diff --git a/WebKitTools/DumpRenderTree/qt/DumpRenderTree.cpp b/WebKitTools/DumpRenderTree/qt/DumpRenderTree.cpp
index 16798c7..73ff8b1 100644
--- a/WebKitTools/DumpRenderTree/qt/DumpRenderTree.cpp
+++ b/WebKitTools/DumpRenderTree/qt/DumpRenderTree.cpp
@@ -60,6 +60,7 @@ extern void qt_drt_run(bool b);
 extern void qt_dump_set_accepts_editing(bool b);
 extern void qt_dump_frame_loader(bool b);
 extern void qt_drt_clearFrameName(QWebFrame* qFrame);
+extern void qt_drt_overwritePluginDirectories();
 
 namespace WebCore {
 
@@ -143,6 +144,8 @@ DumpRenderTree::DumpRenderTree()
     : m_stdin(0)
     , m_notifier(0)
 {
+    qt_drt_overwritePluginDirectories();
+
     m_controller = new LayoutTestController(this);
     connect(m_controller, SIGNAL(done()), this, SLOT(dump()));