fix [2102410] Home Screen is not displayed in the background in Landscape Mode

the blurring code now handles NPOT textures.
diff --git a/libs/surfaceflinger/LayerBlur.h b/libs/surfaceflinger/LayerBlur.h
index 0c3e6eb..bf36ae4 100644
--- a/libs/surfaceflinger/LayerBlur.h
+++ b/libs/surfaceflinger/LayerBlur.h
@@ -56,6 +56,9 @@
     mutable bool    mAutoRefreshPending;
             nsecs_t mCacheAge;
     mutable GLuint  mTextureName;
+    mutable GLfloat mWidthScale;
+    mutable GLfloat mHeightScale;
+    mutable GLfloat mYOffset;
 };
 
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