[Mac] Convert the page info window to a bubble.

chrome/browser/cocoa/location_bar/location_icon_decoration.mm

Index: chrome/browser/cocoa/location_bar/location_icon_decoration.mm
diff --git a/chrome/browser/cocoa/location_bar/location_icon_decoration.mm b/chrome/browser/cocoa/location_bar/location_icon_decoration.mm
index 9ec9794c7c92bf72fd2fd2c8eed77cb75c5230cb..f967af2e617d425d997d8d6c4a289f1bba15c0c4 100644
--- a/chrome/browser/cocoa/location_bar/location_icon_decoration.mm
+++ b/chrome/browser/cocoa/location_bar/location_icon_decoration.mm
@@ -11,6 +11,12 @@
 #include "chrome/browser/tab_contents/tab_contents.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
 
+// The info-bubble point should look like it points to the point
+// between the star's lower tips. The popup should be where the
+// Omnibox popup ends up (2px below field). Determined via Pixie.app
+// magnification.
+const CGFloat kBubblePointYOffset = 2.0;
+
 LocationIconDecoration::LocationIconDecoration(LocationBarViewMac* owner)
     : owner_(owner) {
 }
@@ -45,6 +51,12 @@ NSPasteboard* LocationIconDecoration::GetDragPasteboard() {
   return pboard;
 }
 
+NSPoint LocationIconDecoration::GetBubblePointInFrame(NSRect frame) {
+  const NSRect draw_frame = GetDrawRectInFrame(frame);
+  return NSMakePoint(NSMidX(draw_frame),
+                     NSMaxY(draw_frame) - kBubblePointYOffset);
+}
+
 bool LocationIconDecoration::OnMousePressed(NSRect frame) {
   // Do not show page info if the user has been editing the location
   // bar, or the location bar is at the NTP.