Add code to work around Photon bug. If any part of "text" is rendered

slightly off the drawing surface then the entire chunk of text is clipped.
This is an awful hack that just increases the draw surface by 100.
(A magic number) I am filing a bug with Photon to get a fix.
r=kedl

gfx/src/photon/nsDrawingSurfacePh.cpp

@@ -324,6 +324,19 @@ NS_IMETHODIMP nsDrawingSurfacePh :: Init( PhGC_t * &aGC, PRUint32 aWidth,
   dim.w       = area.size.w;
   dim.h       = area.size.h;
 
+/* This fixes a PHOTON BUG */
+  /* 
+   *  Fix a problem on Test1 when a font is rendered partially out/off of
+   *  the drawing surface nothing is drawn. Increase the Surface to make sure
+   *  the font is always on the surface so it can be blitted correctly.
+   */	 
+  dim.h += 100;
+
+  /*
+   * Kedl thinks this fixes a bug on test 2
+   */  
+  dim.w ++;
+
   PR_LOG(PhGfxLog, PR_LOG_DEBUG, ("nsDrawingSurfacePh::Init create drawing surface: area=<%d,%d,%d,%d> mPixmap=<%p>\n",
     area.pos.x,area.pos.y,area.size.w,area.size.h,mPixmap));