Bug 1066320 - Crop lightweight theme image if it's larger than the displayable area; r=mfinkle

mobile/android/base/LightweightTheme.java

@@ -170,7 +170,7 @@ public class LightweightTheme implements GeckoEventListener {
         // The bitmap image might be smaller than the device's width.
         // If it's smaller, fill the extra space on the left with the dominant color.
         if (bitmapWidth >= maxWidth) {
-            mBitmap = bitmap;
+            mBitmap = Bitmap.createBitmap(bitmap, bitmapWidth - maxWidth, 0, maxWidth, bitmapHeight);
         } else {
             Paint paint = new Paint();
             paint.setAntiAlias(true);