Rename TARGET_OS_* to HOST_OS_*.

runtime/bin/process.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_BIN_PROCESS_H_
 #define RUNTIME_BIN_PROCESS_H_
 
 #include <errno.h>
 
 #include "bin/builtin.h"
 #include "bin/io_buffer.h"
 #include "bin/lockers.h"
 #include "bin/thread.h"
 #include "platform/globals.h"
-#if !defined(TARGET_OS_WINDOWS)
+#if !defined(HOST_OS_WINDOWS)
 #include "platform/signal_blocker.h"
 #endif
 #include "platform/utils.h"
 
 namespace dart {
 namespace bin {
 
 class ProcessResult {
  public:
   ProcessResult() : exit_code_(0) {}
@@ skipping 289 matching lines @@
 
   // Number of bytes of data collected in the linked list.
   intptr_t data_size_;
 
   // Number of free bytes in the last node in the list.
   intptr_t free_size_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferListBase);
 };
 
-#if defined(TARGET_OS_ANDROID) || defined(TARGET_OS_FUCHSIA) ||                \
-    defined(TARGET_OS_LINUX) || defined(TARGET_OS_MACOS)
+#if defined(HOST_OS_ANDROID) || defined(HOST_OS_FUCHSIA) ||                    \
+    defined(HOST_OS_LINUX) || defined(HOST_OS_MACOS)
 class BufferList : public BufferListBase {
  public:
   BufferList() {}
 
   bool Read(int fd, intptr_t available) {
     // Read all available bytes.
     while (available > 0) {
       if (free_size() == 0) {
         if (!Allocate()) {
           errno = ENOMEM;
           return false;
         }
       }
       ASSERT(free_size() > 0);
       ASSERT(free_size() <= kBufferSize);
       intptr_t block_size = dart::Utils::Minimum(free_size(), available);
-#if defined(TARGET_OS_FUCHSIA)
+#if defined(HOST_OS_FUCHSIA)
       intptr_t bytes = NO_RETRY_EXPECTED(
           read(fd, reinterpret_cast<void*>(FreeSpaceAddress()), block_size));
 #else
       intptr_t bytes = TEMP_FAILURE_RETRY(
           read(fd, reinterpret_cast<void*>(FreeSpaceAddress()), block_size));
-#endif  // defined(TARGET_OS_FUCHSIA)
+#endif  // defined(HOST_OS_FUCHSIA)
       if (bytes < 0) {
         return false;
       }
       set_data_size(data_size() + bytes);
       set_free_size(free_size() - bytes);
       available -= bytes;
     }
     return true;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BufferList);
 };
-#endif  // defined(TARGET_OS_ANDROID) ...
+#endif  // defined(HOST_OS_ANDROID) ...
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // RUNTIME_BIN_PROCESS_H_