Re-land alexbost's experimental offscreenTabs API.

chrome/renderer/extensions/custom_bindings_util.cc

Index: chrome/renderer/extensions/custom_bindings_util.cc
diff --git a/chrome/renderer/extensions/custom_bindings_util.cc b/chrome/renderer/extensions/custom_bindings_util.cc
index 08fb52397b94e569bf832ebdb61663e84b184297..fca14665665deac2cb81e637fc5012e6595ebde9 100644
--- a/chrome/renderer/extensions/custom_bindings_util.cc
+++ b/chrome/renderer/extensions/custom_bindings_util.cc
@@ -35,6 +35,7 @@ std::vector<v8::Extension*> GetAll(ExtensionDispatcher* extension_dispatcher) {
     "extensions/browser_action_custom_bindings.js",
     "extensions/content_settings_custom_bindings.js",
     "extensions/devtools_custom_bindings.js",
+    "extensions/experimental.offscreenTabs_custom_bindings.js",
     "extensions/input.ime_custom_bindings.js",
     "extensions/omnibox_custom_bindings.js",
     "extensions/page_action_custom_bindings.js",
@@ -50,6 +51,7 @@ std::vector<v8::Extension*> GetAll(ExtensionDispatcher* extension_dispatcher) {
     IDR_BROWSER_ACTION_CUSTOM_BINDINGS_JS,
     IDR_CONTENT_SETTINGS_CUSTOM_BINDINGS_JS,
     IDR_DEVTOOLS_CUSTOM_BINDINGS_JS,
+    IDR_EXPERIMENTAL_OFFSCREENTABS_CUSTOM_BINDINGS_JS,
     IDR_INPUT_IME_CUSTOM_BINDINGS_JS,
     IDR_OMNIBOX_CUSTOM_BINDINGS_JS,
     IDR_PAGE_ACTION_CUSTOM_BINDINGS_JS,