Change RS to use the passed surface size rather than EGL size.
Its possible that during a resize the EGL information could be stale so
caching this is bad.  The surface size should always be correct.

Change-Id: Ifd479e1ea70b1cada1a8690c7c82e91aa391b685

Conflicts:

	libs/rs/rsProgramStore.cpp
	libs/rs/rsProgramStore.h
diff --git a/libs/rs/rsContext.h b/libs/rs/rsContext.h
index c8f0be5..4a6072d60 100644
--- a/libs/rs/rsContext.h
+++ b/libs/rs/rsContext.h
@@ -125,8 +125,8 @@
         return mStateRaster.mDefault.get();
     }
 
-    uint32_t getWidth() const {return mEGL.mWidth;}
-    uint32_t getHeight() const {return mEGL.mHeight;}
+    uint32_t getWidth() const {return mWidth;}
+    uint32_t getHeight() const {return mHeight;}
 
 
     ThreadIO mIO;