Plugins: Remove Shadow DOM Plugin Placeholder

chrome/renderer/plugins/shadow_dom_plugin_placeholder.cc

-// Copyright 2013 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 "chrome/renderer/plugins/shadow_dom_plugin_placeholder.h"
-
-#include "base/command_line.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/render_messages.h"
-#include "chrome/grit/generated_resources.h"
-#include "chrome/renderer/plugins/plugin_uma.h"
-#include "content/public/renderer/render_frame.h"
-#include "third_party/WebKit/public/web/WebDocument.h"
-#include "third_party/WebKit/public/web/WebLocalFrame.h"
-#include "third_party/WebKit/public/web/WebPluginParams.h"
-#include "ui/base/l10n/l10n_util.h"
-
-namespace {
-
-class MissingPluginPlaceholder : public blink::WebPluginPlaceholder {
- public:
-  // blink::WebPluginPlaceholder overrides
-  blink::WebString message() const override {
-    // TODO(jbroman): IDS_PLUGIN_SEARCHING if ENABLE_PLUGIN_INSTALLATION
-    return l10n_util::GetStringUTF16(IDS_PLUGIN_NOT_SUPPORTED);
-  }
-};
-
-}  // namespace
-
-bool ShadowDOMPluginPlaceholderEnabled() {
-  return base::CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kEnablePluginPlaceholderShadowDom);
-}
-
-scoped_ptr<blink::WebPluginPlaceholder> CreateShadowDOMPlaceholderForPluginInfo(
-    content::RenderFrame* render_frame,
-    blink::WebLocalFrame* frame,
-    const blink::WebPluginParams& orig_params) {
-  using Status = ChromeViewHostMsg_GetPluginInfo_Status;
-
-  if (!ShadowDOMPluginPlaceholderEnabled())
-    return nullptr;
-
-  std::string orig_mime_type = orig_params.mimeType.utf8();
-  // TODO(jbroman): Investigate whether browser plugin needs special handling.
-  ChromeViewHostMsg_GetPluginInfo_Output output;
-#if defined(ENABLE_PLUGINS)
-  render_frame->Send(
-      new ChromeViewHostMsg_GetPluginInfo(render_frame->GetRoutingID(),
-                                          GURL(orig_params.url),
-                                          frame->top()->document().url(),
-                                          orig_mime_type,
-                                          &output));
-#else
-  output.status = Status::kNotFound;
-#endif
-
-  if (output.status == Status::kNotFound) {
-    // TODO(jbroman): Handle YouTube specially here, as in
-    // ChromeContentRendererClient::CreatePlugin.
-    PluginUMAReporter::GetInstance()->ReportPluginMissing(orig_mime_type,
-                                                          orig_params.url);
-    return CreateShadowDOMPlaceholderForMissingPlugin();
-  }
-
-  return nullptr;
-}
-
-scoped_ptr<blink::WebPluginPlaceholder>
-CreateShadowDOMPlaceholderForMissingPlugin() {
-  return make_scoped_ptr(new MissingPluginPlaceholder);
-}