Implement <webview>.addContentScript/removeContentScript API [1]

extensions/browser/guest_view/web_view/web_view_guest.cc

 // Copyright 2014 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 "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 19 matching lines @@
 #include "content/public/common/result_codes.h"
 #include "content/public/common/stop_find_action.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/browser/api/declarative/rules_registry_service.h"
 #include "extensions/browser/api/extensions_api_client.h"
 #include "extensions/browser/api/guest_view/web_view/web_view_internal_api.h"
 #include "extensions/browser/api/web_request/web_request_api.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/guest_view/guest_view_manager.h"
 #include "extensions/browser/guest_view/web_view/web_view_constants.h"
+#include "extensions/browser/guest_view/web_view/web_view_content_script_manager.h"
 #include "extensions/browser/guest_view/web_view/web_view_permission_helper.h"
 #include "extensions/browser/guest_view/web_view/web_view_permission_types.h"
 #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/guest_view/guest_view_constants.h"
 #include "extensions/strings/grit/extensions_strings.h"
 #include "ipc/ipc_message_macros.h"
 #include "net/base/escape.h"
 #include "net/base/net_errors.h"
@@ skipping 815 matching lines @@
   }
 
   WebViewRendererState::WebViewInfo web_view_info;
   web_view_info.embedder_process_id =
       owner_web_contents()->GetRenderProcessHost()->GetID();
   web_view_info.instance_id = view_instance_id();
   web_view_info.partition_id = partition_id;
   web_view_info.owner_extension_id = owner_extension_id();
   web_view_info.rules_registry_id = rules_registry_id_;
 
+  // Get content scripts IDs added by the guest.
+  WebViewContentScriptManager* manager =
+      WebViewContentScriptManager::Get(browser_context());
+  if (manager) {

[Devlin, 2015/04/14 23:04:57]

When can this be null?

[Xi Han, 2015/04/15 19:43:56]

Change to DCHECK.

+    web_view_info.content_script_ids = manager->GetContentScriptIDSet(
+        web_view_info.embedder_process_id, web_view_info.instance_id);
+  }
+
   content::BrowserThread::PostTask(
       content::BrowserThread::IO,
       FROM_HERE,
       base::Bind(&WebViewRendererState::AddGuest,
                  base::Unretained(WebViewRendererState::GetInstance()),
                  web_contents()->GetRenderProcessHost()->GetID(),
                  web_contents()->GetRoutingID(),
                  web_view_info));
 }
 
@@ skipping 515 matching lines @@
     scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
     DispatchEventToView(
         new GuestViewBase::Event(webview::kEventExitFullscreen, args.Pass()));
   }
   // Since we changed fullscreen state, sending a Resize message ensures that
   // renderer/ sees the change.
   web_contents()->GetRenderViewHost()->WasResized();
 }
 
 }  // namespace extensions