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

gpu/command_buffer/client/program_info_manager.cc

 // Copyright (c) 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 <stddef.h>
 #include <stdint.h>
 
 #include "gpu/command_buffer/client/program_info_manager.h"
 
 namespace {
 
 template <typename T>
 static T LocalGetAs(const std::vector<int8_t>& data,
                     uint32_t offset,
                     size_t size) {
   const int8_t* p = &data[0] + offset;
   if (offset + size > data.size()) {
     NOTREACHED();
     return NULL;
   }
   return static_cast<T>(static_cast<const void*>(p));
 }
 
-}  // namespace anonymous
+}  // namespace
 
 namespace gpu {
 namespace gles2 {
 
 ProgramInfoManager::Program::VertexAttrib::VertexAttrib(
     GLsizei _size, GLenum _type, const std::string& _name, GLint _location)
     : size(_size),
       type(_type),
       location(_location),
       name(_name) {
 }
 
 ProgramInfoManager::Program::VertexAttrib::~VertexAttrib() {
 }
 
 ProgramInfoManager::Program::UniformInfo::UniformInfo(
     GLsizei _size, GLenum _type, const std::string& _name)
     : size(_size),
       type(_type),
       name(_name) {
-  is_array = (!name.empty() && name[name.size() - 1] == ']');
+  is_array = (!name.empty() && name.back() == ']');
   DCHECK(!(size > 1 && !is_array));
 }
 
 ProgramInfoManager::Program::UniformInfo::UniformInfo(
     const UniformInfo& other) = default;
 
 ProgramInfoManager::Program::UniformInfo::~UniformInfo() {
 }
 
 ProgramInfoManager::Program::UniformES3::UniformES3()
@@ skipping 991 matching lines @@
       }
       return true;
     }
   }
   return gl->GetUniformIndicesHelper(program, count, names, indices);
 }
 
 }  // namespace gles2
 }  // namespace gpu