Mojo: Add a platform interface for shared memory (embedder::PlatformSharedBuffer).

mojo/system/mapping_table.cc

Index: mojo/system/mapping_table.cc
diff --git a/mojo/system/mapping_table.cc b/mojo/system/mapping_table.cc
index 497b9e0d6a2f39dbf180bd94b21c423b46de7968..7aeb04d17c4b177da18048844a1d9b09f6aa3685 100644
--- a/mojo/system/mapping_table.cc
+++ b/mojo/system/mapping_table.cc
@@ -5,8 +5,8 @@
 #include "mojo/system/mapping_table.h"
 
 #include "base/logging.h"
+#include "mojo/embedder/platform_shared_buffer.h"
 #include "mojo/system/constants.h"
-#include "mojo/system/raw_shared_buffer.h"
 
 namespace mojo {
 namespace system {
@@ -20,13 +20,13 @@ MappingTable::~MappingTable() {
 }
 
 MojoResult MappingTable::AddMapping(
-    scoped_ptr<RawSharedBufferMapping> mapping) {
+    scoped_ptr<embedder::PlatformSharedBufferMapping> mapping) {
   DCHECK(mapping);
 
   if (address_to_mapping_map_.size() >= kMaxMappingTableSize)
     return MOJO_RESULT_RESOURCE_EXHAUSTED;
 
-  uintptr_t address = reinterpret_cast<uintptr_t>(mapping->base());
+  uintptr_t address = reinterpret_cast<uintptr_t>(mapping->GetBase());
   DCHECK(address_to_mapping_map_.find(address) ==
          address_to_mapping_map_.end());
   address_to_mapping_map_[address] = mapping.release();
@@ -37,7 +37,7 @@ MojoResult MappingTable::RemoveMapping(uintptr_t address) {
   AddressToMappingMap::iterator it = address_to_mapping_map_.find(address);
   if (it == address_to_mapping_map_.end())
     return MOJO_RESULT_INVALID_ARGUMENT;
-  RawSharedBufferMapping* mapping_to_delete = it->second;
+  embedder::PlatformSharedBufferMapping* mapping_to_delete = it->second;
   address_to_mapping_map_.erase(it);
   delete mapping_to_delete;
   return MOJO_RESULT_OK;