Change trusted shared memory interface to match audio....

webkit/glue/plugins/pepper_buffer.cc

 // Copyright (c) 2010 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 "webkit/glue/plugins/pepper_buffer.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "ppapi/c/dev/ppb_buffer_dev.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_resource.h"
 #include "webkit/glue/plugins/pepper_common.h"
 #include "webkit/glue/plugins/pepper_plugin_instance.h"
 #include "webkit/glue/plugins/pepper_plugin_module.h"
 
 namespace pepper {
 
 namespace {
 
-PP_Resource Create(PP_Module module_id, int32_t size) {
+PP_Resource Create(PP_Module module_id, uint32_t size) {
   PluginModule* module = ResourceTracker::Get()->GetModule(module_id);
   if (!module)
     return 0;
 
   scoped_refptr<Buffer> buffer(new Buffer(module));
   if (!buffer->Init(size))
     return 0;
 
   return buffer->GetReference();
 }
 
 PP_Bool IsBuffer(PP_Resource resource) {
   return BoolToPPBool(!!Resource::GetAs<Buffer>(resource));
 }
 
-PP_Bool Describe(PP_Resource resource, int32_t* size_in_bytes) {
+PP_Bool Describe(PP_Resource resource, uint32_t* size_in_bytes) {
   scoped_refptr<Buffer> buffer(Resource::GetAs<Buffer>(resource));
   if (!buffer)
     return PP_FALSE;
   buffer->Describe(size_in_bytes);
   return PP_TRUE;
 }
 
 void* Map(PP_Resource resource) {
   scoped_refptr<Buffer> buffer(Resource::GetAs<Buffer>(resource));
   if (!buffer)
@@ skipping 24 matching lines @@
 }
 
 Buffer::~Buffer() {
 }
 
 // static
 const PPB_Buffer_Dev* Buffer::GetInterface() {
   return &ppb_buffer;
 }
 
-bool Buffer::Init(int size) {
+bool Buffer::Init(uint32_t size) {
   if (size == 0)
     return false;
   Unmap();
   size_ = size;
   return true;
 }
 
-void Buffer::Describe(int* size_in_bytes) const {
+void Buffer::Describe(uint32_t* size_in_bytes) const {
   *size_in_bytes = size_;
 }
 
 void* Buffer::Map() {
   if (size_ == 0)
     return NULL;
 
   if (!is_mapped()) {
     mem_buffer_.reset(new unsigned char[size_]);
     memset(mem_buffer_.get(), 0, size_);
   }
   return mem_buffer_.get();
 }
 
 void Buffer::Unmap() {
   mem_buffer_.reset();
 }
 
 void Buffer::Swap(Buffer* other) {
   swap(other->mem_buffer_, mem_buffer_);
   std::swap(other->size_, size_);
 }
 
 }  // namespace pepper