Add PERSISTENT_MAP usage for GpuMemoryBuffers.

content/common/child_process_host_impl.cc

Index: content/common/child_process_host_impl.cc
diff --git a/content/common/child_process_host_impl.cc b/content/common/child_process_host_impl.cc
index 69a63507f5866808d58339dc9aa9f17ccc654caa..3fa4dc89cf090a7724956b500b49ac2a2a802bab 100644
--- a/content/common/child_process_host_impl.cc
+++ b/content/common/child_process_host_impl.cc
@@ -323,11 +323,9 @@ void ChildProcessHostImpl::OnAllocateGpuMemoryBuffer(
   // and handle failure in a controlled way when not. We just need to make
   // sure |format| and |usage| are supported here.
   if (GpuMemoryBufferImplSharedMemory::IsFormatSupported(format) &&
-      usage == gfx::GpuMemoryBuffer::MAP) {
+      GpuMemoryBufferImplSharedMemory::IsUsageSupported(usage)) {
     *handle = GpuMemoryBufferImplSharedMemory::AllocateForChildProcess(
-        g_next_gpu_memory_buffer_id.GetNext(),
-        gfx::Size(width, height),
-        format,
+        g_next_gpu_memory_buffer_id.GetNext(), gfx::Size(width, height), format,
         peer_process_.Handle());
   }
 }