Use container::back() and container::pop_back().

remoting/client/plugin/pepper_video_renderer_3d.cc

 // 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 "remoting/client/plugin/pepper_video_renderer_3d.h"
 
 #include <math.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 200 matching lines @@
 
 void PepperVideoRenderer3D::ProcessVideoPacket(
     std::unique_ptr<VideoPacket> packet,
     const base::Closure& done) {
   VideoPacket* packet_ptr = packet.get();
   std::unique_ptr<FrameTracker> frame_tracker(
       new FrameTracker(std::move(packet), stats_consumer_, done));
 
   // Don't need to do anything if the packet is empty. Host sends empty video
   // packets when the screen is not changing.
-  if (!packet_ptr->data().size())
+  if (packet_ptr->data().empty())
     return;
 
   if (!frame_received_) {
     event_handler_->OnVideoFirstFrameReceived();
     frame_received_ = true;
   }
 
   if (packet_ptr->format().has_screen_width() &&
       packet_ptr->format().has_screen_height()) {
     frame_size_.set(packet_ptr->format().screen_width(),
@@ skipping 298 matching lines @@
   gles2_if_->AttachShader(graphics_.pp_resource(), shader_program_, shader);
   gles2_if_->DeleteShader(graphics_.pp_resource(), shader);
 }
 
 void PepperVideoRenderer3D::CheckGLError() {
   GLenum error = gles2_if_->GetError(graphics_.pp_resource());
   CHECK_EQ(error, static_cast<GLenum>(GL_NO_ERROR)) << "GL error: " << error;
 }
 
 }  // namespace remoting