Bug 716639. Add a constructor for gfxQuartzSurface that takes a gfxIntSize. r=mwoodrow

--HG--
extra : rebase_source : ec2d4e1c76e504b794707d83e5f31580aee81fee

gfx/thebes/gfxQuartzSurface.cpp

@@ -90,6 +90,26 @@ gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
     Init(surf);
 }
 
+gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
+                                   const gfxIntSize& size,
+                                   bool aForPrinting)
+    : mCGContext(context), mSize(size), mForPrinting(aForPrinting)
+{
+    if (!CheckSurfaceSize(size))
+        MakeInvalid();
+
+    unsigned int width = static_cast<unsigned int>(mSize.width);
+    unsigned int height = static_cast<unsigned int>(mSize.height);
+
+    cairo_surface_t *surf = 
+        cairo_quartz_surface_create_for_cg_context(context,
+                                                   width, height);
+
+    CGContextRetain(mCGContext);
+
+    Init(surf);
+}
+
 gfxQuartzSurface::gfxQuartzSurface(cairo_surface_t *csurf,
                                    bool aForPrinting) :
     mSize(-1.0, -1.0), mForPrinting(aForPrinting)

gfx/thebes/gfxQuartzSurface.h

@@ -50,6 +50,7 @@ class THEBES_API gfxQuartzSurface : public gfxASurface {
 public:
     gfxQuartzSurface(const gfxSize& size, gfxImageFormat format, bool aForPrinting = false);
     gfxQuartzSurface(CGContextRef context, const gfxSize& size, bool aForPrinting = false);
+    gfxQuartzSurface(CGContextRef context, const gfxIntSize& size, bool aForPrinting = false);
     gfxQuartzSurface(cairo_surface_t *csurf, bool aForPrinting = false);
     gfxQuartzSurface(unsigned char *data, const gfxSize& size, long stride, gfxImageFormat format, bool aForPrinting = false);