cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/priority_calculator.cc

Index: cc/priority_calculator.cc
diff --git a/cc/priority_calculator.cc b/cc/priority_calculator.cc
index fc250d958fae412a782017e8f49cb137660a2673..8993f88e3723ad2f6ae5bec334292dcb1246ba3c 100644
--- a/cc/priority_calculator.cc
+++ b/cc/priority_calculator.cc
@@ -5,6 +5,7 @@
 #include "config.h"
 
 #include "cc/priority_calculator.h"
+#include "ui/gfx/rect.h"
 
 using namespace std;
 
@@ -71,9 +72,9 @@ int PriorityCalculator::lingeringPriority(int previousPriority)
 }
 
 namespace {
-int manhattanDistance(const IntRect& a, const IntRect& b)
+int manhattanDistance(const gfx::Rect& a, const gfx::Rect& b)
 {
-    IntRect c = unionRect(a, b);
+    gfx::Rect c = gfx::UnionRects(a, b);
     int x = max(0, c.width() - a.width() - b.width() + 1);
     int y = max(0, c.height() - a.height() - b.height() + 1);
     return (x + y);
@@ -81,7 +82,7 @@ int manhattanDistance(const IntRect& a, const IntRect& b)
 }
 
 // static
-int PriorityCalculator::priorityFromDistance(const IntRect& visibleRect, const IntRect& textureRect, bool drawsToRootSurface)
+int PriorityCalculator::priorityFromDistance(const gfx::Rect& visibleRect, const gfx::Rect& textureRect, bool drawsToRootSurface)
 {
     int distance = manhattanDistance(visibleRect, textureRect);
     if (!distance)