Introduce Pickle::{Read,Write}PODArray to serialize arrays of POD

content/common/cc_messages.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/common/cc_messages.h"
 
 #include "base/command_line.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/filter_operations.h"
 #include "content/public/common/common_param_traits.h"
@@ skipping 231 matching lines @@
 
 void ParamTraits<gfx::Transform>::Write(
     Message* m, const param_type& p) {
 #ifdef SK_MSCALAR_IS_FLOAT
   float column_major_data[16];
   p.matrix().asColMajorf(column_major_data);
 #else
   double column_major_data[16];
   p.matrix().asColMajord(column_major_data);
 #endif
-  m->WriteBytes(&column_major_data, sizeof(SkMScalar) * 16);
+  m->WritePODArray<16>(column_major_data);
 }
 
 bool ParamTraits<gfx::Transform>::Read(
     const Message* m, PickleIterator* iter, param_type* r) {
-  const char* column_major_data;
-  if (!m->ReadBytes(iter, &column_major_data, sizeof(SkMScalar) * 16))
+  const SkMScalar* column_major_data;
+  if (!m->ReadPODArray<16>(iter, &column_major_data))
     return false;
   r->matrix().setColMajor(
       reinterpret_cast<const SkMScalar*>(column_major_data));
   return true;
 }
 
 void ParamTraits<gfx::Transform>::Log(
     const param_type& p, std::string* l) {
 #ifdef SK_MSCALAR_IS_FLOAT
   float row_major_data[16];
@@ skipping 464 matching lines @@
   l->append(", [");
   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
     if (i)
       l->append(", ");
     LogParam(*p.render_pass_list[i], l);
   }
   l->append("])");
 }
 
 }  // namespace IPC