GPU: Build most of the gpu as a single DLL.

gpu/command_buffer/client/fenced_allocator.h

Index: gpu/command_buffer/client/fenced_allocator.h
===================================================================
--- gpu/command_buffer/client/fenced_allocator.h	(revision 124716)
+++ gpu/command_buffer/client/fenced_allocator.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -8,6 +8,8 @@
 #define GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_
 
 #include <vector>
+
+#include "../../gpu_export.h"
 #include "../common/logging.h"
 #include "../common/types.h"
 
@@ -24,7 +26,7 @@
 // environment which is multi-process, this class isn't "thread safe", because
 // it isn't meant to be shared across modules. It is thread-compatible though
 // (see http://www.corp.google.com/eng/doc/cpp_primer.html#thread_safety).
-class FencedAllocator {
+class GPU_EXPORT FencedAllocator {
  public:
   typedef unsigned int Offset;
   // Invalid offset, returned by Alloc in case of failure.