Add gpu implementation of OverdrawXfermode

debugger/QT/SkSettingsWidget.cpp

Index: debugger/QT/SkSettingsWidget.cpp
diff --git a/debugger/QT/SkSettingsWidget.cpp b/debugger/QT/SkSettingsWidget.cpp
index 59b79203839458554e1ad580ea3c94b357b85e6f..4665217bd84df8e6dac3824c97172f9aeebcafe2 100644
--- a/debugger/QT/SkSettingsWidget.cpp
+++ b/debugger/QT/SkSettingsWidget.cpp
@@ -21,30 +21,36 @@ SkSettingsWidget::SkSettingsWidget() : QFrame()
 
     // Visualizations toggles.
     fVisualizationsGroup.setTitle("Visualizations");
+
     fVisibilityFilterCheckBox.setText("Visibility Filter");
     fVisualizationsLayout.addWidget(&fVisibilityFilterCheckBox);
+
     fMegaVizCheckBox.setText("Mega Viz");
     fVisualizationsLayout.addWidget(&fMegaVizCheckBox);
+
     fPathOpsCheckBox.setText("PathOps ");
     fVisualizationsLayout.addWidget(&fPathOpsCheckBox);
+
+    fOverdrawVizCheckBox.setText("Overdraw Viz");
+    fVisualizationsLayout.addWidget(&fOverdrawVizCheckBox);
+
     fVisualizationsGroup.setLayout(&fVisualizationsLayout);
+
     connect(&fVisibilityFilterCheckBox, SIGNAL(toggled(bool)), this,
             SIGNAL(visualizationsChanged()));
     connect(&fMegaVizCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(visualizationsChanged()));
     connect(&fPathOpsCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(visualizationsChanged()));
+    connect(&fOverdrawVizCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(visualizationsChanged()));
 
     fVerticalLayout.addRow(&fVisualizationsGroup);
 
     // Raster toggles.
     fRasterGroup.setTitle("Raster");
     fRasterGroup.setCheckable(true);
-    fOverdrawVizCheckBox.setText("Overdraw Viz");
-    fRasterLayout.addWidget(&fOverdrawVizCheckBox);
     fRasterGroup.setLayout(&fRasterLayout);
     fVerticalLayout.addRow(&fRasterGroup);
 
     connect(&fRasterGroup, SIGNAL(toggled(bool)), this, SIGNAL(rasterSettingsChanged()));
-    connect(&fOverdrawVizCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(rasterSettingsChanged()));
 
 #if SK_SUPPORT_GPU
     fGLGroup.setTitle("OpenGL");