Moved the contextmenu webview API to stable, and removed the experimental API infrastructure.

chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc

Index: chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
diff --git a/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc b/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
index 813d090ff86a89306077e79be6640cb9decfc72a..8121346eaa74244136fc8a2a1762f58a9ce5e8ec 100644
--- a/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
+++ b/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
@@ -215,8 +215,6 @@ void ChromeExtensionsDispatcherDelegate::PopulateSourceMap(
   source_map->RegisterSource("chromeWebViewInternal",
                              IDR_CHROME_WEB_VIEW_INTERNAL_CUSTOM_BINDINGS_JS);
   source_map->RegisterSource("chromeWebView", IDR_CHROME_WEB_VIEW_JS);
-  source_map->RegisterSource("chromeWebViewExperimental",
-                             IDR_CHROME_WEB_VIEW_EXPERIMENTAL_JS);
   source_map->RegisterSource("injectAppTitlebar", IDR_INJECT_APP_TITLEBAR_JS);
 }
 
@@ -241,10 +239,6 @@ void ChromeExtensionsDispatcherDelegate::RequireAdditionalModules(
   // The API will be automatically set up when first used.
   if (context->GetAvailability("webViewInternal").is_available()) {
     module_system->Require("chromeWebView");
-    if (context->GetAvailability("webViewExperimentalInternal")
-            .is_available()) {
-      module_system->Require("chromeWebViewExperimental");
-    }
   }
 }