WIP Component build of autofill

components/autofill/browser/autofill_manager.h

Index: components/autofill/browser/autofill_manager.h
diff --git a/components/autofill/browser/autofill_manager.h b/components/autofill/browser/autofill_manager.h
index 4a2bb5f752ddb27d17f7f73920b869e780419817..82d15bf62a28894fac50c0740b685118264ac314 100644
--- a/components/autofill/browser/autofill_manager.h
+++ b/components/autofill/browser/autofill_manager.h
@@ -75,9 +75,10 @@ struct PasswordFormFillData;
 
 // Manages saving and restoring the user's personal information entered into web
 // forms.
-class AutofillManager : public content::WebContentsObserver,
-                        public AutofillDownloadManager::Observer,
-                        public base::SupportsUserData::Data {
+class AUTOFILL_EXPORT AutofillManager
+    : public content::WebContentsObserver,
+      NON_EXPORTED_BASE(public AutofillDownloadManager::Observer),
+      public base::SupportsUserData::Data {
  public:
   static void CreateForWebContentsAndDelegate(
       content::WebContents* contents,