Abstract WebContentsObserver from Autofill shared code

components/autofill/browser/autocomplete_history_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/autofill/browser/autocomplete_history_manager.h"
 
 #include <vector>
 
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
+#include "components/autofill/browser/autofill_driver.h"
 #include "components/autofill/browser/autofill_external_delegate.h"
 #include "components/autofill/browser/validation.h"
 #include "components/autofill/common/autofill_messages.h"
 #include "components/autofill/common/autofill_pref_names.h"
 #include "components/autofill/common/form_data.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
+#include "ipc/ipc_message_macros.h"
 
 using content::BrowserContext;
 using content::WebContents;
 
 namespace autofill {
 namespace {
 
 // Limit on the number of suggestions to appear in the pop-up menu under an
 // text input element in a form.
 const int kMaxAutocompleteMenuItems = 6;
 
 bool IsTextField(const FormFieldData& field) {
   return
       field.form_control_type == "text" ||
       field.form_control_type == "search" ||
       field.form_control_type == "tel" ||
       field.form_control_type == "url" ||
       field.form_control_type == "email" ||
       field.form_control_type == "text";
 }
 
 }  // namespace
 
 AutocompleteHistoryManager::AutocompleteHistoryManager(
-    WebContents* web_contents)
-    : content::WebContentsObserver(web_contents),
-      browser_context_(web_contents->GetBrowserContext()),
+    AutofillDriver* driver)

[Ilya Sherman, 2013/06/12 00:07:46]

nit: Looks like this fits on the previous line.

[blundell, 2013/06/12 16:29:37]

Done.

+    : browser_context_(driver->GetWebContents()->GetBrowserContext()),
+      driver_(driver),
       autofill_data_(
           AutofillWebDataService::FromBrowserContext(browser_context_)),
       pending_query_handle_(0),
       query_id_(0),
-      external_delegate_(NULL) {
+      external_delegate_(NULL),
+      send_IPC_(true) {
   autofill_enabled_.Init(
       prefs::kAutofillEnabled,
       user_prefs::UserPrefs::Get(browser_context_));
 }
 
 AutocompleteHistoryManager::~AutocompleteHistoryManager() {
   CancelPendingQuery();
 }
 
-bool AutocompleteHistoryManager::OnMessageReceived(
-    const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(AutocompleteHistoryManager, message)
-    IPC_MESSAGE_HANDLER(AutofillHostMsg_RemoveAutocompleteEntry,
-                        OnRemoveAutocompleteEntry)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
 void AutocompleteHistoryManager::OnWebDataServiceRequestDone(
     WebDataServiceBase::Handle h,
     const WDTypedResult* result) {
   DCHECK(pending_query_handle_);
   pending_query_handle_ = 0;
 
   if (!*autofill_enabled_) {
     SendSuggestions(NULL);
     return;
   }
@@ skipping 117 matching lines @@
   }
 
   if (external_delegate_) {
     external_delegate_->OnSuggestionsReturned(
         query_id_,
         autofill_values_,
         autofill_labels_,
         autofill_icons_,
         autofill_unique_ids_);
   } else {
-    Send(new AutofillMsg_SuggestionsReturned(routing_id(),
-                                             query_id_,
-                                             autofill_values_,
-                                             autofill_labels_,
-                                             autofill_icons_,
-                                             autofill_unique_ids_));
+    WebContents* web_contents = driver_->GetWebContents();
+    if (web_contents) {

[blundell, 2013/06/12 16:29:37]

This is where send_ipc_ should have been used (and is now being used).

+      web_contents->Send(
+          new AutofillMsg_SuggestionsReturned(web_contents->GetRoutingID(),
+                                              query_id_,
+                                              autofill_values_,
+                                              autofill_labels_,
+                                              autofill_icons_,
+                                              autofill_unique_ids_));
+    }
   }
 
   query_id_ = 0;
   autofill_values_.clear();
   autofill_labels_.clear();
   autofill_icons_.clear();
   autofill_unique_ids_.clear();
 }
 
 }  // namespace autofill