Backing out bug 473443 - drawImage of canvas onto self is incorrect. WINCE only.

content/canvas/src/nsCanvasRenderingContext2D.cpp

@@ -3154,14 +3154,9 @@ nsCanvasRenderingContext2D::ThebesSurfaceFromElement(nsIDOMElement *imgElt,
         if (!forceCopy && canvas->CountContexts() == 1) {
             nsICanvasRenderingContextInternal *srcCanvas = canvas->GetContextAtIndex(0);
             rv = srcCanvas->GetThebesSurface(getter_AddRefs(sourceSurface));
-#ifndef WINCE
             // force a copy if we couldn't get the surface, or if it's
             // the same as what we have
             if (sourceSurface == mSurface || NS_FAILED(rv))
-#else
-            // force a copy if we couldn't get the surface
-            if (NS_FAILED(rv))
-#endif
                 sourceSurface = nsnull;
         }