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 e2bb0c7057bb68a9a5adcb98b162f1b6518124e4..fc680ad39f2e83be47cad78892390f640b6869fa 100644
--- a/cc/priority_calculator.cc
+++ b/cc/priority_calculator.cc
@@ -67,9 +67,9 @@ 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);
@@ -77,7 +77,7 @@ 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)