Fix other build errors from r352208.

mojo/edk/embedder/embedder_unittest.cc

 // Copyright 2014 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 "mojo/edk/embedder/embedder.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 114 matching lines @@
 
   char read_buffer[20000] = {};
   uint32_t num_bytes = static_cast<uint32_t>(sizeof(read_buffer));
   MojoHandle ports[10];
   uint32_t num_ports;
   EXPECT_EQ(MOJO_RESULT_OK,
             MojoReadMessage(client_mp, read_buffer, &num_bytes, &ports[0],
                             &num_ports, MOJO_READ_MESSAGE_FLAG_NONE));
   EXPECT_EQ(write_size, num_bytes);
   EXPECT_STREQ(kHello, read_buffer);
-  EXPECT_EQ(1, num_ports);
+  EXPECT_EQ(1u, num_ports);
 
 
   client_mp2 = ports[0];
   EXPECT_EQ(MOJO_RESULT_OK, MojoWait(client_mp2, MOJO_HANDLE_SIGNAL_READABLE,
                                      MOJO_DEADLINE_INDEFINITE, &state));
   EXPECT_EQ(kSignalReadadableWritable, state.satisfied_signals);
   EXPECT_EQ(kSignalAll, state.satisfiable_signals);
 
 
   EXPECT_EQ(MOJO_RESULT_OK,
             MojoReadMessage(client_mp2, read_buffer, &num_bytes, &client_mp3,
                             &num_ports, MOJO_READ_MESSAGE_FLAG_NONE));
   EXPECT_EQ(write_size, num_bytes);
   EXPECT_STREQ(kHello, read_buffer);
-  EXPECT_EQ(1, num_ports);
+  EXPECT_EQ(1u, num_ports);
 
 
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp3));
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp3));
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp2));
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp2));
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp));
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp));
 }
 
@@ skipping 390 matching lines @@
     EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp1));
   }
 }
 
 // TODO(vtl): Test immediate write & close.
 // TODO(vtl): Test broken-connection cases.
 
 }  // namespace
 }  // namespace edk
 }  // namespace mojo