Autofill: Add legal message footer to save credit card bubble.

chrome/browser/ui/autofill/save_card_bubble_controller.h

Index: chrome/browser/ui/autofill/save_card_bubble_controller.h
diff --git a/chrome/browser/ui/autofill/save_card_bubble_controller.h b/chrome/browser/ui/autofill/save_card_bubble_controller.h
index 75ae33b142fa5a515948cc2e1e2e38d00a9da6ec..ffce6c297263bd9526140064d873a15af4ff52aa 100644
--- a/chrome/browser/ui/autofill/save_card_bubble_controller.h
+++ b/chrome/browser/ui/autofill/save_card_bubble_controller.h
@@ -6,6 +6,8 @@
 #define CHROME_BROWSER_UI_AUTOFILL_SAVE_CARD_BUBBLE_CONTROLLER_H_
 
 #include "base/macros.h"
+#include "base/strings/string16.h"
+#include "ui/gfx/range/range.h"
 
 namespace autofill {
 
@@ -14,11 +16,19 @@ class SaveCardBubbleView;
 // Interface that exposes controller functionality to SaveCardBubbleView.
 class SaveCardBubbleController {
  public:
+  // Interaction.
   virtual void OnSaveButton() = 0;
   virtual void OnCancelButton() = 0;
   virtual void OnLearnMoreClicked() = 0;
+  virtual void OnLegalMessageLinkClicked(const gfx::Range& link_range) = 0;
   virtual void OnBubbleClosed() = 0;
 
+  // State.
+
+  // Returns empty string if no legal message should be shown.
+  virtual const base::string16& GetLegalMessage() const = 0;
+  virtual const std::vector<gfx::Range>& GetLegalMessageLinkRanges() const = 0;
+
  protected:
   SaveCardBubbleController() {}
   virtual ~SaveCardBubbleController() {}