Move SharedBitmapManager implementation out of content/

content/child/child_thread_impl.cc

Index: content/child/child_thread_impl.cc
diff --git a/content/child/child_thread_impl.cc b/content/child/child_thread_impl.cc
index 135a42492708586084eb99780d57cae7e62f444d..dafc10d833d0d6e4f8e8dace62cabb93b785bc7d 100644
--- a/content/child/child_thread_impl.cc
+++ b/content/child/child_thread_impl.cc
@@ -684,26 +684,6 @@ mojom::RouteProvider* ChildThreadImpl::GetRemoteRouteProvider() {
   return remote_route_provider_.get();
 }
 
-// static
-std::unique_ptr<base::SharedMemory> ChildThreadImpl::AllocateSharedMemory(
-    size_t buf_size) {
-  mojo::ScopedSharedBufferHandle mojo_buf =
-      mojo::SharedBufferHandle::Create(buf_size);
-  if (!mojo_buf->is_valid()) {
-    LOG(WARNING) << "Browser failed to allocate shared memory";
-    return nullptr;
-  }
-
-  base::SharedMemoryHandle shared_buf;
-  if (mojo::UnwrapSharedMemoryHandle(std::move(mojo_buf), &shared_buf,
-                                     nullptr, nullptr) != MOJO_RESULT_OK) {
-    LOG(WARNING) << "Browser failed to allocate shared memory";
-    return nullptr;
-  }
-
-  return base::MakeUnique<base::SharedMemory>(shared_buf, false);
-}
-
 #if defined(OS_LINUX)
 void ChildThreadImpl::SetThreadPriority(base::PlatformThreadId id,
                                         base::ThreadPriority priority) {