mojo: add missing noexcept to move operator/constructor in PendingRemoteState

PendingRemote has moved to declare its move operator/constructors noexcept. But
it requires its members to do that too. We were missing noexcept in
PendingRemoteState.

Bug: 819294
Change-Id: I95af4c8d96a89c5a7991f414624a2a47d16494e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1713527Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: José Dapena Paz <jose.dapena@lge.com>
Cr-Commit-Position: refs/heads/master@{#679938}

mojo/public/cpp/bindings/lib/pending_remote_state.cc

@@ -13,11 +13,12 @@ PendingRemoteState::PendingRemoteState(ScopedMessagePipeHandle pipe,
                                        uint32_t version)
     : pipe(std::move(pipe)), version(version) {}
 
-PendingRemoteState::PendingRemoteState(PendingRemoteState&&) = default;
+PendingRemoteState::PendingRemoteState(PendingRemoteState&&) noexcept = default;
 
 PendingRemoteState::~PendingRemoteState() = default;
 
-PendingRemoteState& PendingRemoteState::operator=(PendingRemoteState&& other) {
+PendingRemoteState& PendingRemoteState::operator=(
+    PendingRemoteState&& other) noexcept {
   reset();
   pipe = std::move(other.pipe);
   version = other.version;

mojo/public/cpp/bindings/lib/pending_remote_state.h

@@ -21,11 +21,11 @@ struct COMPONENT_EXPORT(MOJO_CPP_BINDINGS_BASE) PendingRemoteState {
   PendingRemoteState();
   PendingRemoteState(ScopedMessagePipeHandle pipe, uint32_t version);
   PendingRemoteState(const PendingRemoteState&) = delete;
-  PendingRemoteState(PendingRemoteState&&);
+  PendingRemoteState(PendingRemoteState&&) noexcept;
   ~PendingRemoteState();
 
   PendingRemoteState& operator=(const PendingRemoteState&) = delete;
-  PendingRemoteState& operator=(PendingRemoteState&&);
+  PendingRemoteState& operator=(PendingRemoteState&&) noexcept;
 
   void reset();