bug 726962 - remove stray instances of PRBool in gfx. r=joe

gfx/layers/DirectedGraph.h

@@ -64,7 +64,7 @@ public:
   class RemoveEdgesToComparator 
   {
   public:
-    PRBool Equals(const Edge& a, T const& b) const { return a.mTo == b; }
+    bool Equals(const Edge& a, T const& b) const { return a.mTo == b; }
   };
 
   /**

gfx/thebes/gfxContext.cpp

@@ -480,7 +480,7 @@ gfxContext::Rectangle(const gfxRect& rect, bool snapToPixels)
 
     if (snapToPixels) {
       gfxRect newRect(rect);
-      if (UserToDevicePixelSnapped(newRect, PR_TRUE)) {
+      if (UserToDevicePixelSnapped(newRect, true)) {
         gfxMatrix mat = ThebesMatrix(mDT->GetTransform());
         mat.Invert();
 
@@ -1608,7 +1608,7 @@ gfxContext::PointInStroke(const gfxPoint& pt)
     return cairo_in_stroke(mCairo, pt.x, pt.y);
   } else {
     // XXX - Used by SVG, needs fixing.
-    return PR_FALSE;
+    return false;
   }
 }
 
@@ -1669,7 +1669,7 @@ gfxContext::HasError()
     return cairo_status(mCairo) != CAIRO_STATUS_SUCCESS;
   } else {
     // As far as this is concerned, an Azure context is never in error.
-    return PR_FALSE;
+    return false;
   }
 }
 

gfx/thebes/gfxQuad.h

@@ -50,7 +50,7 @@ struct THEBES_API gfxQuad {
         mPoints[3] = aFour;
     }
 
-    PRBool Contains(const gfxPoint& aPoint)
+    bool Contains(const gfxPoint& aPoint)
     {
         return (gfxLineSegment(mPoints[0], mPoints[1]).PointsOnSameSide(aPoint, mPoints[2]) &&
                 gfxLineSegment(mPoints[1], mPoints[2]).PointsOnSameSide(aPoint, mPoints[3]) &&