VST(3) Host: Use standard (non-flipped) coordinate space for plugin editors

This change fixes an issue where UAD VST2 plugins would incorrectly draw
a menu at the top, rather than at the bottom, of the editor view.

modules/juce_audio_processors/juce_audio_processors.cpp

@@ -155,21 +155,19 @@ private:
         }
     }
 
-    struct FlippedNSView : public ObjCClass<NSView>
+    struct InnerNSView : public ObjCClass<NSView>
     {
-        FlippedNSView()
-            : ObjCClass ("JuceFlippedNSView_")
+        InnerNSView()
+            : ObjCClass ("JuceInnerNSView_")
         {
             addIvar<NSViewComponentWithParent*> ("owner");
 
-            addMethod (@selector (isFlipped),      isFlipped);
             addMethod (@selector (isOpaque),       isOpaque);
             addMethod (@selector (didAddSubview:), didAddSubview);
 
             registerClass();
         }
 
-        static BOOL isFlipped (id, SEL) { return YES; }
         static BOOL isOpaque  (id, SEL) { return YES; }
 
         static void nudge (id self)
@@ -179,15 +177,12 @@ private:
                     owner->triggerAsyncUpdate();
         }
 
-        static void viewDidUnhide (id self, SEL)               { nudge (self); }
         static void didAddSubview (id self, SEL, NSView*)      { nudge (self); }
-        static void viewDidMoveToSuperview (id self, SEL)      { nudge (self); }
-        static void viewDidMoveToWindow (id self, SEL)         { nudge (self); }
     };
 
-    static FlippedNSView& getViewClass()
+    static InnerNSView& getViewClass()
     {
-        static FlippedNSView result;
+        static InnerNSView result;
         return result;
     }
 };