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

extensions/browser/guest_view/guest_view_message_filter.cc

Index: extensions/browser/guest_view/guest_view_message_filter.cc
diff --git a/extensions/browser/guest_view/guest_view_message_filter.cc b/extensions/browser/guest_view/guest_view_message_filter.cc
index 52f8d6bc9297fd127c4e7d774737bd938e5adcb7..57201b4c137711e14d93849aa846b2087e140078 100644
--- a/extensions/browser/guest_view/guest_view_message_filter.cc
+++ b/extensions/browser/guest_view/guest_view_message_filter.cc
@@ -11,6 +11,8 @@
 #include "extensions/browser/guest_view/guest_view_manager.h"
 #include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_constants.h"
 #include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
+#include "extensions/browser/guest_view/web_view/web_view_content_script_manager.h"
+#include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
 #include "extensions/common/guest_view/guest_view_messages.h"
 #include "ipc/ipc_message_macros.h"
 
@@ -61,6 +63,8 @@ bool GuestViewMessageFilter::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(GuestViewHostMsg_CreateMimeHandlerViewGuest,
                         OnCreateMimeHandlerViewGuest)
     IPC_MESSAGE_HANDLER(GuestViewHostMsg_ResizeGuest, OnResizeGuest)
+    IPC_MESSAGE_HANDLER(GuestViewHostMsg_CanExecuteContentScript,
+                        OnCanExecuteContentScript)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -133,6 +137,22 @@ void GuestViewMessageFilter::OnResizeGuest(int render_frame_id,
   mhvg->SetSize(set_size_params);
 }
 
+void GuestViewMessageFilter::OnCanExecuteContentScript(int render_view_id,
+                                                       int script_id,
+                                                       bool* allowed) {
+  WebViewRendererState::WebViewInfo info;
+  WebViewRendererState::GetInstance()->GetInfo(render_process_id_,
+                                               render_view_id, &info);

[Fady Samuel, 2015/03/27 20:25:36]

Don't use WebViewRendererState, use GuestViewManager

[Xi Han, 2015/03/30 17:50:49]

Done.

+  WebViewContentScriptManager* manager =
+      WebViewContentScriptManager::Get(browser_context_);
+  if (!manager) {
+    *allowed = false;
+    return;
+  }
+  *allowed = manager->OwnsUserScript(info.embedder_process_id, info.instance_id,
+                                     script_id);
+}
+
 void GuestViewMessageFilter::MimeHandlerViewGuestCreatedCallback(
     int element_instance_id,
     int embedder_render_process_id,