Enable Autocomplete feature for chromium webview

android_webview/browser/aw_autofill_manager_delegate.h

Index: android_webview/browser/aw_autofill_manager_delegate.h
diff --git a/android_webview/browser/aw_autofill_manager_delegate.h b/android_webview/browser/aw_autofill_manager_delegate.h
index 80cc43ae232c746345ddcdf5087c3ba31d7e0cd0..23b4d7d778ae40cc183d3039bfc98899dc97b3fd 100644
--- a/android_webview/browser/aw_autofill_manager_delegate.h
+++ b/android_webview/browser/aw_autofill_manager_delegate.h
@@ -7,9 +7,8 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "base/prefs/pref_registry_simple.h"
-#include "base/prefs/pref_service_builder.h"
 #include "components/autofill/browser/autofill_manager_delegate.h"
+#include "content/public/browser/web_contents_user_data.h"
 
 namespace autofill {
 class AutofillMetrics;
@@ -33,10 +32,18 @@ class PrefService;
 
 namespace android_webview {
 
-class AwAutofillManagerDelegate :
-    public autofill::AutofillManagerDelegate {
+// Manager delegate for the autofill functionality. Android webview
+// supports enabling autocomplete feature for each webview instance
+// (different than the browser which supports enabling/disabling for
+// a profile). Since there is only one pref service for a given browser
+// context, we cannot enable this feature via UserPrefs. Rather, we always
+// keep the feature enabled at the pref service, and control it via
+// the delegates.
+class AwAutofillManagerDelegate
+    : public autofill::AutofillManagerDelegate,
+      public content::WebContentsUserData<AwAutofillManagerDelegate> {
+
  public:
-  AwAutofillManagerDelegate(bool enabled);
   virtual ~AwAutofillManagerDelegate();
 
   void SetSaveFormData(bool enabled);
@@ -76,6 +83,11 @@ class AwAutofillManagerDelegate :
   virtual void UpdateProgressBar(double value) OVERRIDE;
 
  private:
+  AwAutofillManagerDelegate(content::WebContents* contents);
+  friend class content::WebContentsUserData<AwAutofillManagerDelegate>;
+
+  bool save_form_data_;
+
   DISALLOW_COPY_AND_ASSIGN(AwAutofillManagerDelegate);
 };