Remove TpmInitStatus signal.

We are deprecating tpm-related APIs by cryptohome.

BUG=b:172748724
TEST=build ok.

Change-Id: I21a8ba93549d88b0324f62d33b653cf8d939fd5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2563432
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Commit-Queue: Leo Lai <cylai@google.com>
Cr-Commit-Position: refs/heads/master@{#832811}

chromeos/dbus/cryptohome/cryptohome_client.cc

@@ -796,12 +796,6 @@ class CryptohomeClientImpl : public CryptohomeClient {
             weak_ptr_factory_.GetWeakPtr()),
         base::BindOnce(&CryptohomeClientImpl::OnSignalConnected,
                        weak_ptr_factory_.GetWeakPtr()));
-    proxy_->ConnectToSignal(
-        cryptohome::kCryptohomeInterface, cryptohome::kSignalTpmInitStatus,
-        base::BindRepeating(&CryptohomeClientImpl::TpmInitStatusReceived,
-                            weak_ptr_factory_.GetWeakPtr()),
-        base::BindOnce(&CryptohomeClientImpl::OnSignalConnected,
-                       weak_ptr_factory_.GetWeakPtr()));
     proxy_->ConnectToSignal(
         cryptohome::kCryptohomeInterface, cryptohome::kSignalLowDiskSpace,
         base::BindRepeating(&CryptohomeClientImpl::LowDiskSpaceReceived,
@@ -1052,21 +1046,6 @@ class CryptohomeClientImpl : public CryptohomeClient {
       observer.AsyncCallStatusWithData(async_id, return_status, return_data);
   }
 
-  // Handles TpmInitStatus signal.
-  void TpmInitStatusReceived(dbus::Signal* signal) {
-    dbus::MessageReader reader(signal);
-    bool ready = false;
-    bool owned = false;
-    bool was_owned_this_boot = false;
-    if (!reader.PopBool(&ready) || !reader.PopBool(&owned) ||
-        !reader.PopBool(&was_owned_this_boot)) {
-      LOG(ERROR) << "Invalid signal: " << signal->ToString();
-      return;
-    }
-    for (auto& observer : observer_list_)
-      observer.TpmInitStatusUpdated(ready, owned, was_owned_this_boot);
-  }
-
   // Handles LowDiskSpace signal.
   void LowDiskSpaceReceived(dbus::Signal* signal) {
     dbus::MessageReader reader(signal);

chromeos/dbus/cryptohome/cryptohome_client.h

@@ -72,12 +72,6 @@ class COMPONENT_EXPORT(CRYPTOHOME_CLIENT) CryptohomeClient {
                                          bool return_status,
                                          const std::string& data) {}
 
-    // Called when TpmInitStatus signal is received, when the status of the TPM
-    // initialization is changed.
-    virtual void TpmInitStatusUpdated(bool ready,
-                                      bool owned,
-                                      bool was_owned_this_boot) {}
-
     // Called when LowDiskSpace signal is received, when the cryptohome
     // partition is running out of disk space.
     virtual void LowDiskSpace(uint64_t disk_free_bytes) {}

chromeos/dbus/cryptohome/fake_cryptohome_client.cc

@@ -694,14 +694,6 @@ void FakeCryptohomeClient::NotifyAsyncCallStatusWithData(
     observer.AsyncCallStatusWithData(async_id, return_status, data);
 }
 
-void FakeCryptohomeClient::NotifyTpmInitStatusUpdated(
-    bool ready,
-    bool owned,
-    bool was_owned_this_boot) {
-  for (auto& observer : observer_list_)
-    observer.TpmInitStatusUpdated(ready, owned, was_owned_this_boot);
-}
-
 void FakeCryptohomeClient::NotifyDircryptoMigrationProgress(
     cryptohome::DircryptoMigrationStatus status,
     uint64_t current,

chromeos/dbus/cryptohome/fake_cryptohome_client.h

@@ -243,11 +243,6 @@ class COMPONENT_EXPORT(CRYPTOHOME_CLIENT) FakeCryptohomeClient
     rsu_device_id_ = rsu_device_id;
   }
 
-  // Calls TpmInitStatusUpdated() on Observer instances.
-  void NotifyTpmInitStatusUpdated(bool ready,
-                                  bool owned,
-                                  bool was_owned_this_boot);
-
   // Calls DircryptoMigrationProgress() on Observer instances.
   void NotifyDircryptoMigrationProgress(
       cryptohome::DircryptoMigrationStatus status,