IsValidGpuMemoryBuffer  326 content/common/gpu/client/command_buffer_proxy_impl.cc   DCHECK(GpuChannelHost::IsValidGpuMemoryBuffer(
IsValidGpuMemoryBuffer  100 content/common/gpu/client/gpu_channel_host.h   static bool IsValidGpuMemoryBuffer(gfx::GpuMemoryBufferHandle handle);