content: Update the include paths of base/string_piece.h to its new location.

content/gpu/gpu_info_collector.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 "content/gpu/gpu_info_collector.h"
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_number_conversions.h"
-#include "base/string_piece.h"
+#include "base/strings/string_piece.h"
 #include "base/strings/string_split.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_surface.h"
 
 namespace {
 
 scoped_refptr<gfx::GLSurface> InitializeGLSurface() {
   scoped_refptr<gfx::GLSurface> surface(
       gfx::GLSurface::CreateOffscreenGLSurface(false, gfx::Size(1, 1)));
@@ skipping 105 matching lines @@
 
   basic_gpu_info->can_lose_context = context_gpu_info.can_lose_context;
   basic_gpu_info->sandboxed = context_gpu_info.sandboxed;
   basic_gpu_info->gpu_accessible = context_gpu_info.gpu_accessible;
   basic_gpu_info->finalized = context_gpu_info.finalized;
   basic_gpu_info->initialization_time = context_gpu_info.initialization_time;
 }
 
 }  // namespace gpu_info_collector