Add compile time checks against longs being used in IPC structs on 32 bit Android.

content/common/fileapi/webblob_messages.h

 // 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.
 
 // IPC messages for HTML5 Blob and Stream.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 
 #include "content/common/content_export.h"
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "storage/common/data_element.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 #define IPC_MESSAGE_START BlobMsgStart
 
 // Blob messages sent from the renderer to the browser.
 
 IPC_MESSAGE_CONTROL1(BlobHostMsg_StartBuilding,
                      std::string /*uuid */)
 IPC_MESSAGE_CONTROL2(BlobHostMsg_AppendBlobDataItem,
                      std::string /* uuid */,
                      storage::DataElement)
 IPC_SYNC_MESSAGE_CONTROL3_0(BlobHostMsg_SyncAppendSharedMemory,
                             std::string /*uuid*/,
                             base::SharedMemoryHandle,
-                            size_t /* buffer size */)
+                            uint32_t /* buffer size */)
 IPC_MESSAGE_CONTROL2(BlobHostMsg_FinishBuilding,
                      std::string /* uuid */,
                      std::string /* content_type */)
 
 IPC_MESSAGE_CONTROL1(BlobHostMsg_IncrementRefCount,
                      std::string /* uuid */)
 IPC_MESSAGE_CONTROL1(BlobHostMsg_DecrementRefCount,
                      std::string /* uuid */)
 IPC_MESSAGE_CONTROL2(BlobHostMsg_RegisterPublicURL,
                      GURL,
@@ skipping 10 matching lines @@
 
 // Appends data to a stream being built.
 IPC_MESSAGE_CONTROL2(StreamHostMsg_AppendBlobDataItem,
                      GURL /* url */,
                      storage::DataElement)
 
 // Appends data to a stream being built.
 IPC_SYNC_MESSAGE_CONTROL3_0(StreamHostMsg_SyncAppendSharedMemory,
                             GURL /* url */,
                             base::SharedMemoryHandle,
-                            size_t /* buffer size */)
+                            uint32_t /* buffer size */)
 
 // Flushes contents buffered in the stream.
 IPC_MESSAGE_CONTROL1(StreamHostMsg_Flush,
                      GURL /* url */)
 
 // Finishes building a stream.
 IPC_MESSAGE_CONTROL1(StreamHostMsg_FinishBuilding,
                      GURL /* url */)
 
 // Aborts building a stream.
 IPC_MESSAGE_CONTROL1(StreamHostMsg_AbortBuilding,
                      GURL /* url */)
 
 // Creates a new stream that's a clone of an existing src stream.
 IPC_MESSAGE_CONTROL2(StreamHostMsg_Clone,
                      GURL /* url */,
                      GURL /* src_url */)
 
 // Removes a stream.
 IPC_MESSAGE_CONTROL1(StreamHostMsg_Remove,
                      GURL /* url */)