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

cc/image_layer.cc

Index: cc/image_layer.cc
diff --git a/cc/image_layer.cc b/cc/image_layer.cc
index 7b94add6c23777ca1077547e941ef99325fb4ff5..6d290447c366a81fa63a8d3d81961a589c65a9af 100644
--- a/cc/image_layer.cc
+++ b/cc/image_layer.cc
@@ -119,7 +119,7 @@ void ImageLayer::update(TextureUpdateQueue& queue, const OcclusionTracker* occlu
     if (m_needsDisplay) {
         m_updater->setBitmap(m_bitmap);
         updateTileSizeAndTilingOption();
-        invalidateContentRect(IntRect(IntPoint(), contentBounds()));
+        invalidateContentRect(gfx::Rect(gfx::Point(), contentBounds()));
         m_needsDisplay = false;
     }
     TiledLayer::update(queue, occlusion, stats);
@@ -140,9 +140,9 @@ LayerUpdater* ImageLayer::updater() const
     return m_updater.get();
 }
 
-IntSize ImageLayer::contentBounds() const
+gfx::Size ImageLayer::contentBounds() const
 {
-    return IntSize(m_bitmap.width(), m_bitmap.height());
+    return gfx::Size(m_bitmap.width(), m_bitmap.height());
 }
 
 bool ImageLayer::drawsContent() const