[Autofill] Componentize AutofillCCInfoBarDelegate.

components/autofill/core/browser/autofill_driver.h

Index: components/autofill/core/browser/autofill_driver.h
diff --git a/components/autofill/core/browser/autofill_driver.h b/components/autofill/core/browser/autofill_driver.h
index b690191ffd411a7c4b3fd0e4708bd641657ba4f8..b44b3404924c33bf2dfdcc6a6df83b07d4294679 100644
--- a/components/autofill/core/browser/autofill_driver.h
+++ b/components/autofill/core/browser/autofill_driver.h
@@ -7,7 +7,9 @@
 
 #include <vector>
 
+#include "base/memory/weak_ptr.h"
 #include "components/autofill/core/common/form_data.h"
+#include "ui/base/window_open_disposition.h"
 
 namespace base {
 class SequencedWorkerPool;
@@ -24,7 +26,7 @@ class FormStructure;
 // Interface that allows Autofill core code to interact with its driver (i.e.,
 // obtain information from it and give information to it). A concrete
 // implementation must be provided by the driver.
-class AutofillDriver {
+class AutofillDriver : public base::SupportsWeakPtr<AutofillDriver> {
  public:
    // The possible actions that the renderer can take on receiving form data.
   enum RendererFormDataAction {
@@ -89,6 +91,11 @@ class AutofillDriver {
   // Tells the renderer to preview the node with suggested text.
   virtual void RendererShouldPreviewFieldWithValue(
       const base::string16& value) = 0;
+
+  // Opens the help |url| with |disposition| on link click perfromed on the
+  // infobar.

[Peter Kasting, 2014/12/23 21:20:35]

Nit: How about:

Opens |url| with the supplied |disposition|.

(This code doesn't really care in what circumstances clients might call it, so
it doesn't need to describe that.)

[Pritam Nikam, 2014/12/24 11:16:57]

Done.

+  virtual void LinkClicked(const GURL& url,
+                           WindowOpenDisposition disposition) = 0;
 };
 
 }  // namespace autofill