removing methods that are already implemented by the base class

gfx/src/thebes/nsThebesDeviceContext.cpp

@@ -360,21 +360,6 @@ nsThebesDeviceContext::SupportsNativeWidgets(PRBool &aSupportsWidgets)
     return NS_OK;
 }
 
-NS_IMETHODIMP
-nsThebesDeviceContext::GetCanonicalPixelScale(float &aScale) const
-{
-    aScale = mPixelScale;
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsThebesDeviceContext::SetCanonicalPixelScale(float aScale)
-{
-    DeviceContextImpl::SetCanonicalPixelScale(aScale);
-    mPixelScale = aScale;
-    return NS_OK;
-}
-
 NS_IMETHODIMP
 nsThebesDeviceContext::GetScrollBarDimensions(float &aWidth, float &aHeight) const
 {

gfx/src/thebes/nsThebesDeviceContext.h

@@ -78,9 +78,6 @@ public:
     NS_IMETHOD SupportsNativeWidgets(PRBool &aSupportsWidgets);
     NS_IMETHOD PrepareNativeWidget(nsIWidget* aWidget, void** aOut);
 
-    NS_IMETHOD GetCanonicalPixelScale(float &aScale) const;
-    NS_IMETHOD SetCanonicalPixelScale(float aScale);
-
     NS_IMETHOD GetScrollBarDimensions(float &aWidth, float &aHeight) const;
 
     NS_IMETHOD GetSystemFont(nsSystemFontID aID, nsFont *aFont) const;
@@ -137,7 +134,6 @@ protected:
     void ComputeFullAreaUsingScreen(nsRect* outRect);
     void FindScreen(nsIScreen** outScreen);
 
-    float mPixelScale;
     PRUint32 mDepth;
 
 private: