Support "always allow" for runtime script execution

chrome/browser/extensions/extension_context_menu_model.cc

Index: chrome/browser/extensions/extension_context_menu_model.cc
diff --git a/chrome/browser/extensions/extension_context_menu_model.cc b/chrome/browser/extensions/extension_context_menu_model.cc
index 1890a0ec9e1186626eb5f0a234c74e6e470328a2..d9f02b32c395917803a13402549d209d602fa24b 100644
--- a/chrome/browser/extensions/extension_context_menu_model.cc
+++ b/chrome/browser/extensions/extension_context_menu_model.cc
@@ -6,6 +6,7 @@
 
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/extensions/active_script_controller.h"
 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
 #include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/extensions/extension_action_manager.h"
@@ -16,6 +17,7 @@
 #include "chrome/browser/ui/chrome_pages.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/extensions/manifest_handlers/content_scripts_handler.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
@@ -25,6 +27,7 @@
 #include "extensions/browser/management_policy.h"
 #include "extensions/browser/uninstall_reason.h"
 #include "extensions/common/extension.h"
+#include "extensions/common/manifest_constants.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -112,6 +115,13 @@ void ExtensionContextMenuModel::ExecuteCommand(int command_id,
       browser_->OpenURL(params);
       break;
     }
+    case ALWAYS_ALLOW: {
+      content::WebContents* web_contents =
+          browser_->tab_strip_model()->GetActiveWebContents();
+     extensions::ActiveScriptController::GetForWebContents(web_contents)
+         ->AddPersistedPermission(extension);
+     break;
+    }
     case CONFIGURE:
       DCHECK(!extensions::ManifestURL::GetOptionsPage(extension).is_empty());
       extensions::ExtensionTabUtil::OpenOptionsPage(extension, browser_);
@@ -174,6 +184,15 @@ void ExtensionContextMenuModel::InitMenu(const Extension* extension) {
   base::ReplaceChars(extension_name, "&", "&&", &extension_name);
   AddItem(NAME, base::UTF8ToUTF16(extension_name));
   AddSeparator(ui::NORMAL_SEPARATOR);
+
+  // Add the "Always Allow" item for adding persisted permissions for script
+  // injections.
+  // TODO: Only add this item if the current page does not match any
+  // persisted permissions.
+  if (!extension_action_manager->GetBrowserAction(*extension) &&
+      extension->GetManifestData(extensions::manifest_keys::kContentScripts))
+    AddItemWithStringId(ALWAYS_ALLOW, IDS_EXTENSIONS_ALWAYS_ALLOW);
+
   AddItemWithStringId(CONFIGURE, IDS_EXTENSIONS_OPTIONS_MENU_ITEM);
   AddItem(UNINSTALL, l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNINSTALL));
   if (extension_action_manager->GetBrowserAction(*extension))