Remove compile time flag ORIENTATION_EVENT and use runtime flag instead. Update layout test case to…

Source/core/frame/Frame.h

Index: Source/core/frame/Frame.h
diff --git a/Source/core/frame/Frame.h b/Source/core/frame/Frame.h
index f999319d9fce44b7a779d77ab98938cda3aa97d3..5b05e77b5c402fb59b1004dc25e8e059629dd022 100644
--- a/Source/core/frame/Frame.h
+++ b/Source/core/frame/Frame.h
@@ -196,13 +196,11 @@ namespace WebCore {
         void deviceOrPageScaleFactorChanged();
         double devicePixelRatio() const;
 
-#if ENABLE(ORIENTATION_EVENTS)
         // Orientation is the interface orientation in degrees. Some examples are:
         //  0 is straight up; -90 is when the device is rotated 90 clockwise;
         //  90 is when rotated counter clockwise.
         void sendOrientationChangeEvent(int orientation);
         int orientation() const { return m_orientation; }
-#endif
 
         String documentTypeString() const;
 
@@ -249,9 +247,7 @@ namespace WebCore {
         float m_pageZoomFactor;
         float m_textZoomFactor;
 
-#if ENABLE(ORIENTATION_EVENTS)
         int m_orientation;
-#endif
 
         bool m_inViewSourceMode;