Change glimage to accept a type.

content/common/gpu/client/gpu_memory_buffer_impl_shm.cc

 // Copyright 2013 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 "content/common/gpu/client/gpu_memory_buffer_impl_shm.h"
 
 #include "base/logging.h"
+#include "ui/gl/gl_bindings.h"
 
 namespace content {
 
 GpuMemoryBufferImplShm::GpuMemoryBufferImplShm(gfx::Size size,
                                                unsigned internalformat)
     : GpuMemoryBufferImpl(size, internalformat) {}
 
 GpuMemoryBufferImplShm::~GpuMemoryBufferImplShm() {}
 
+// static
+bool GpuMemoryBufferImplShm::IsUsageSupported(unsigned usage) {
+  switch (usage) {
+    case GL_IMAGE_MAP_CHROMIUM:
+      return true;
+    default:
+      return false;
+  }
+}
+
 bool GpuMemoryBufferImplShm::Initialize(gfx::GpuMemoryBufferHandle handle) {
   if (!base::SharedMemory::IsHandleValid(handle.handle))
     return false;
   shared_memory_.reset(new base::SharedMemory(handle.handle, false));
   DCHECK(!shared_memory_->memory());
   return true;
 }
 
 bool GpuMemoryBufferImplShm::InitializeFromSharedMemory(
     scoped_ptr<base::SharedMemory> shared_memory) {
   shared_memory_ = shared_memory.Pass();
   DCHECK(!shared_memory_->memory());
   return true;
 }
 
-void* GpuMemoryBufferImplShm::Map(AccessMode mode) {
+void* GpuMemoryBufferImplShm::Map() {
   DCHECK(!mapped_);
   if (!shared_memory_->Map(size_.GetArea() * BytesPerPixel(internalformat_)))
     return NULL;
   mapped_ = true;
   return shared_memory_->memory();
 }
 
 void GpuMemoryBufferImplShm::Unmap() {
   DCHECK(mapped_);
   shared_memory_->Unmap();
   mapped_ = false;
 }
 
 gfx::GpuMemoryBufferHandle GpuMemoryBufferImplShm::GetHandle() const {
   gfx::GpuMemoryBufferHandle handle;
   handle.type = gfx::SHARED_MEMORY_BUFFER;
   handle.handle = shared_memory_->handle();
   return handle;
 }
 
 }  // namespace content