Upstream JavaScript injection for iOS

ios/web/web_view_util.mm

+// 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 "ios/web/web_view_util.h"
+
+#include "base/ios/ios_util.h"
+
+namespace {
+
+bool g_force_ui_web_view = false;

[sdefresne, 2014/12/10 15:30:24]

This is a C++ file, so this should use mixedCamelCase.

This global should be documented too.

[droger, 2014/12/10 17:48:55]

C++ variables don't use camel case.
A search for
^g_
on cs.chromium.org will show that this is the usual style.

I added a comment though.

+
+}  // namespace
+
+namespace web {
+
+bool IsWKWebViewEnabled() {
+#if defined(ENABLE_WKWEBVIEW)
+  // Eventually this may be a dynamic flag, but for now it's purely a
+  // compile-time option.
+  return !g_force_ui_web_view && base::ios::IsRunningOnIOS8OrLater();
+#else
+  return false;
+#endif
+}
+
+void SetForceUIWebView(bool flag) {
+  g_force_ui_web_view = flag;
+}
+
+bool GetForceUIWebView() {
+  return g_force_ui_web_view;
+}
+
+}  // namespace web