Finish implementing the geolocation infobar; adds a Learn more link pointing ...

chrome/browser/tab_contents/infobar_delegate.h

Index: chrome/browser/tab_contents/infobar_delegate.h
===================================================================
--- chrome/browser/tab_contents/infobar_delegate.h	(revision 41849)
+++ chrome/browser/tab_contents/infobar_delegate.h	(working copy)
@@ -241,6 +241,22 @@
   // the InfoBarDelegate should be removed from the associated TabContents.
   virtual bool Cancel() { return true; }
 
+  // Returns the text of the link to be displayed, if any. Otherwise returns
+  // and empty string.
+  virtual std::wstring GetLinkText() {
+    return std::wstring();
+  }
+
+  // Called when the Link is clicked. The |disposition| specifies how the
+  // resulting document should be loaded (based on the event flags present when
+  // the link was clicked). This function returns true if the InfoBar should be
+  // closed now or false if it should remain until the user explicitly closes
+  // it.
+  // Will only be called if GetLinkText() returns non-empty string.
+  virtual bool LinkClicked(WindowOpenDisposition disposition) {
+    return true;
+  }
+
   // Overridden from InfoBarDelegate:
   virtual InfoBar* CreateInfoBar();
   virtual ConfirmInfoBarDelegate* AsConfirmInfoBarDelegate() {