Revert of Remove deprecated methods from Pickle.

content/common/cc_messages.cc

Index: content/common/cc_messages.cc
diff --git a/content/common/cc_messages.cc b/content/common/cc_messages.cc
index 29294dba91571c7315977c609d8137bc8db5d22d..426cee21be45d49e709d7309b4e1ce237518c40b 100644
--- a/content/common/cc_messages.cc
+++ b/content/common/cc_messages.cc
@@ -228,7 +228,7 @@
     const Message* m, PickleIterator* iter, param_type* r) {
   const char* data = 0;
   int length = 0;
-  if (!iter->ReadData(&data, &length))
+  if (!m->ReadData(iter, &data, &length))
     return false;
   if (length > 0) {
     SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
@@ -262,7 +262,7 @@
 bool ParamTraits<gfx::Transform>::Read(
     const Message* m, PickleIterator* iter, param_type* r) {
   const char* column_major_data;
-  if (!iter->ReadBytes(&column_major_data, sizeof(SkMScalar) * 16))
+  if (!m->ReadBytes(iter, &column_major_data, sizeof(SkMScalar) * 16))
     return false;
   r->matrix().setColMajor(
       reinterpret_cast<const SkMScalar*>(column_major_data));