Fix render bounds of iframes on devices with a pixel ratio != 1.

sky/engine/core/rendering/RenderIFrame.cpp

Index: sky/engine/core/rendering/RenderIFrame.cpp
diff --git a/sky/engine/core/rendering/RenderIFrame.cpp b/sky/engine/core/rendering/RenderIFrame.cpp
index 76b09620fa6ee576c7e90a660fdc7bb7591db70d..e4ca846a32c94452b34232646f1fcb8a271c2b58 100644
--- a/sky/engine/core/rendering/RenderIFrame.cpp
+++ b/sky/engine/core/rendering/RenderIFrame.cpp
@@ -34,11 +34,13 @@ void RenderIFrame::updateWidgetBounds()
         return;
 
     IntRect bounds = absoluteContentBox();
+    const float scaleFactor =

[abarth-chromium, 2015/02/04 16:41:11]

scaleFactor -> devicePixelRatio

[tonyg, 2015/02/04 16:56:37]

Done.

+        contentView->GetRoot()->viewport_metrics().device_pixel_ratio;
     mojo::Rect mojoBounds;
-    mojoBounds.x = bounds.x();
-    mojoBounds.y = bounds.y();
-    mojoBounds.width = bounds.width();
-    mojoBounds.height = bounds.height();
+    mojoBounds.x = bounds.x() * scaleFactor;
+    mojoBounds.y = bounds.y() * scaleFactor;
+    mojoBounds.width = bounds.width() * scaleFactor;
+    mojoBounds.height = bounds.height() * scaleFactor;
     contentView->SetBounds(mojoBounds);
 }