Remove dependency from infobars component to the embedder

chrome/browser/ui/views/infobars/extension_infobar.cc

Index: chrome/browser/ui/views/infobars/extension_infobar.cc
diff --git a/chrome/browser/ui/views/infobars/extension_infobar.cc b/chrome/browser/ui/views/infobars/extension_infobar.cc
index 92d665be28d5738ea7796c113093c8b2368201bf..60c8a8f9ae219daed5eac14b974a204f0c98f12e 100644
--- a/chrome/browser/ui/views/infobars/extension_infobar.cc
+++ b/chrome/browser/ui/views/infobars/extension_infobar.cc
@@ -96,6 +96,7 @@ ExtensionInfoBar::~ExtensionInfoBar() {
 }
 
 void ExtensionInfoBar::Layout() {
+  DCHECK(owner());
   InfoBarView::Layout();
 
   infobar_icon_->SetPosition(gfx::Point(StartX(), OffsetY(infobar_icon_)));
@@ -105,10 +106,11 @@ void ExtensionInfoBar::Layout() {
   // but the NativeViewHost inside does not seem to be clipped by the ClipRect()
   // call in InfoBarView::PaintChildren(), so we have to manually clamp the size
   // here.
-  extension_view->SetSize(
-      gfx::Size(std::max(0, EndX() - StartX() - NonExtensionViewWidth()),
-                std::min(height() - kSeparatorLineHeight - arrow_height(),
-                         GetDelegate()->height())));
+  const infobars::InfoBarConstants& constants = owner()->GetInfoBarConstants();
+  extension_view->SetSize(gfx::Size(
+      std::max(0, EndX() - StartX() - NonExtensionViewWidth()),
+      std::min(height() - constants.separator_line_height - arrow_height(),
+               GetDelegate()->height())));
   // We do SetPosition() separately after SetSize() so OffsetY() will work.
   extension_view->SetPosition(
       gfx::Point(infobar_icon_->bounds().right() + kIconHorizontalMargin,