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

mojo/system/remote_message_pipe_unittest.cc

Index: mojo/system/remote_message_pipe_unittest.cc
diff --git a/mojo/system/remote_message_pipe_unittest.cc b/mojo/system/remote_message_pipe_unittest.cc
index e026c30aa8653f1c79e52e2cd31b5d3a90c26b73..5f5c9fb1df52ae5c9eedc5871d34803c70941329 100644
--- a/mojo/system/remote_message_pipe_unittest.cc
+++ b/mojo/system/remote_message_pipe_unittest.cc
@@ -21,6 +21,7 @@
 #include "build/build_config.h"              // TODO(vtl): Remove this.
 #include "mojo/common/test/test_utils.h"
 #include "mojo/embedder/platform_channel_pair.h"
+#include "mojo/embedder/platform_shared_buffer.h"
 #include "mojo/embedder/scoped_platform_handle.h"
 #include "mojo/system/channel.h"
 #include "mojo/system/local_message_pipe_endpoint.h"
@@ -708,16 +709,16 @@ TEST_F(RemoteMessagePipeTest, MAYBE_SharedBufferPassing) {
   ASSERT_TRUE(dispatcher);
 
   // Make a mapping.
-  scoped_ptr<RawSharedBufferMapping> mapping0;
+  scoped_ptr<embedder::PlatformSharedBufferMapping> mapping0;
   EXPECT_EQ(
       MOJO_RESULT_OK,
       dispatcher->MapBuffer(0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping0));
   ASSERT_TRUE(mapping0);
-  ASSERT_TRUE(mapping0->base());
-  ASSERT_EQ(100u, mapping0->length());
-  static_cast<char*>(mapping0->base())[0] = 'A';
-  static_cast<char*>(mapping0->base())[50] = 'B';
-  static_cast<char*>(mapping0->base())[99] = 'C';
+  ASSERT_TRUE(mapping0->GetBase());
+  ASSERT_EQ(100u, mapping0->GetLength());
+  static_cast<char*>(mapping0->GetBase())[0] = 'A';
+  static_cast<char*>(mapping0->GetBase())[50] = 'B';
+  static_cast<char*>(mapping0->GetBase())[99] = 'C';
 
   // Prepare to wait on MP 1, port 1. (Add the waiter now. Otherwise, if we do
   // it later, it might already be readable.)
@@ -780,27 +781,27 @@ TEST_F(RemoteMessagePipeTest, MAYBE_SharedBufferPassing) {
   dispatcher = static_cast<SharedBufferDispatcher*>(read_dispatchers[0].get());
 
   // Make another mapping.
-  scoped_ptr<RawSharedBufferMapping> mapping1;
+  scoped_ptr<embedder::PlatformSharedBufferMapping> mapping1;
   EXPECT_EQ(
       MOJO_RESULT_OK,
       dispatcher->MapBuffer(0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping1));
   ASSERT_TRUE(mapping1);
-  ASSERT_TRUE(mapping1->base());
-  ASSERT_EQ(100u, mapping1->length());
-  EXPECT_NE(mapping1->base(), mapping0->base());
-  EXPECT_EQ('A', static_cast<char*>(mapping1->base())[0]);
-  EXPECT_EQ('B', static_cast<char*>(mapping1->base())[50]);
-  EXPECT_EQ('C', static_cast<char*>(mapping1->base())[99]);
+  ASSERT_TRUE(mapping1->GetBase());
+  ASSERT_EQ(100u, mapping1->GetLength());
+  EXPECT_NE(mapping1->GetBase(), mapping0->GetBase());
+  EXPECT_EQ('A', static_cast<char*>(mapping1->GetBase())[0]);
+  EXPECT_EQ('B', static_cast<char*>(mapping1->GetBase())[50]);
+  EXPECT_EQ('C', static_cast<char*>(mapping1->GetBase())[99]);
 
   // Write stuff either way.
-  static_cast<char*>(mapping1->base())[1] = 'x';
-  EXPECT_EQ('x', static_cast<char*>(mapping0->base())[1]);
-  static_cast<char*>(mapping0->base())[2] = 'y';
-  EXPECT_EQ('y', static_cast<char*>(mapping1->base())[2]);
+  static_cast<char*>(mapping1->GetBase())[1] = 'x';
+  EXPECT_EQ('x', static_cast<char*>(mapping0->GetBase())[1]);
+  static_cast<char*>(mapping0->GetBase())[2] = 'y';
+  EXPECT_EQ('y', static_cast<char*>(mapping1->GetBase())[2]);
 
   // Kill the first mapping; the second should still be valid.
   mapping0.reset();
-  EXPECT_EQ('A', static_cast<char*>(mapping1->base())[0]);
+  EXPECT_EQ('A', static_cast<char*>(mapping1->GetBase())[0]);
 
   // Close everything that belongs to us.
   mp0->Close(0);
@@ -808,7 +809,7 @@ TEST_F(RemoteMessagePipeTest, MAYBE_SharedBufferPassing) {
   EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close());
 
   // The second mapping should still be good.
-  EXPECT_EQ('x', static_cast<char*>(mapping1->base())[1]);
+  EXPECT_EQ('x', static_cast<char*>(mapping1->GetBase())[1]);
 }
 
 #if defined(OS_POSIX)