Update legacy Tuple-using code.

content/renderer/browser_plugin/browser_plugin.cc

 // Copyright 2012 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 "content/renderer/browser_plugin/browser_plugin.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 169 matching lines @@
     return;
 
   BrowserPluginMsg_CompositorFrameSwapped::Param param;
   if (!BrowserPluginMsg_CompositorFrameSwapped::Read(&message, &param))
     return;
   // Note that there is no need to send ACK for this message.
   // If the guest has updated pixels then it is no longer crashed.
   guest_crashed_ = false;
 
   scoped_ptr<cc::CompositorFrame> frame(new cc::CompositorFrame);
-  param.b.frame.AssignTo(frame.get());
+  get<1>(param).frame.AssignTo(frame.get());
 
   EnableCompositing(true);
-  compositing_helper_->OnCompositorFrameSwapped(frame.Pass(),
-                                                param.b.producing_route_id,
-                                                param.b.output_surface_id,
-                                                param.b.producing_host_id,
-                                                param.b.shared_memory_handle);
+  compositing_helper_->OnCompositorFrameSwapped(
+      frame.Pass(),
+      get<1>(param).producing_route_id,
+      get<1>(param).output_surface_id,
+      get<1>(param).producing_host_id,
+      get<1>(param).shared_memory_handle);
 }
 
 void BrowserPlugin::OnGuestGone(int browser_plugin_instance_id) {
   guest_crashed_ = true;
 
   // Turn off compositing so we can display the sad graphic. Changes to
   // compositing state will show up at a later time after a layout and commit.
   EnableCompositing(false);
 
   // Queue up showing the sad graphic to give content embedders an opportunity
@@ skipping 453 matching lines @@
     const blink::WebMouseEvent& event) {
   BrowserPluginManager::Get()->Send(
       new BrowserPluginHostMsg_HandleInputEvent(render_view_routing_id_,
                                                 browser_plugin_instance_id_,
                                                 plugin_rect_,
                                                 &event));
   return true;
 }
 
 }  // namespace content