[StreamExecutor] Rename ::perftools::gputools -> ::stream_executor, part 1.

Step 1 of re-namespace'ing StreamExecutor into ::stream_executor.

This moves everything inside of stream_executor/..., and leaves a
namespace alias into ::perftools::gputools.  The next steps will clean
up users to use the new namespace.

This is mostly a mechanical change, but it also includes a bunch of
non-mechanical changes that ideally would be split out into separate
patches.  Unfortunately they all sort of need to be shoved in here for
various reasons:

 - forward declarations need to be in the same namespace as the actual
   types, so we need to change all forward declarations of
   StreamExecutor types in this one patch.

 - Uses of these forward declarations need to be changed to the new
   namespace (or otherwise we need to add a namespace alias to the
   relevant header, but this is pretty ugly).

 - Various initialization code needs to live in StreamExecutor's "real"
   namespace, so all this needs to be changed.

PiperOrigin-RevId: 193256128

2 files changed, 5 insertions, 9 deletions

diff --git a/tensorflow/stream_executor/platform/default/mutex.h b/tensorflow/stream_executor/platform/default/mutex.h
index 62de0cbce0..c9f5a7c609 100644
--- a/tensorflow/stream_executor/platform/default/mutex.h
+++ b/tensorflow/stream_executor/platform/default/mutex.h
@@ -18,8 +18,7 @@ limitations under the License.
 
 #include "tensorflow/stream_executor/platform/mutex.h"
 
-namespace perftools {
-namespace gputools {
+namespace stream_executor {
 
 #undef mutex_lock
 #undef tf_shared_lock
@@ -35,7 +34,6 @@ using tensorflow::tf_shared_lock;
 #define tf_shared_lock(x) \
   static_assert(0, "tf_shared_lock_decl_missing_var_name");
 
-}  // namespace gputools
-}  // namespace perftools
+}  // namespace stream_executor
 
 #endif  // TENSORFLOW_STREAM_EXECUTOR_PLATFORM_DEFAULT_MUTEX_H_
diff --git a/tensorflow/stream_executor/platform/port.h b/tensorflow/stream_executor/platform/port.h
index 6603df4878..259cf380d6 100644
--- a/tensorflow/stream_executor/platform/port.h
+++ b/tensorflow/stream_executor/platform/port.h
@@ -13,7 +13,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 ==============================================================================*/
 
-// IWYU pragma: private, include "perftools/gputools/executor/stream_executor.h"
+// IWYU pragma: private, include "third_party/tensorflow/stream_executor/stream_executor.h"
 
 #ifndef TENSORFLOW_STREAM_EXECUTOR_PLATFORM_PORT_H_
 #define TENSORFLOW_STREAM_EXECUTOR_PLATFORM_PORT_H_
@@ -22,8 +22,7 @@ limitations under the License.
 #include "tensorflow/core/platform/mutex.h"
 #include "tensorflow/core/platform/types.h"
 
-namespace perftools {
-namespace gputools {
+namespace stream_executor {
 
 using tensorflow::int8;
 using tensorflow::int16;
@@ -50,8 +49,7 @@ using tensorflow::LINKER_INITIALIZED;
 
 #define SE_FALLTHROUGH_INTENDED TF_FALLTHROUGH_INTENDED
 
-}  // namespace gputools
-}  // namespace perftools
+}  // namespace stream_executor
 
 #define SE_DISALLOW_COPY_AND_ASSIGN TF_DISALLOW_COPY_AND_ASSIGN
 #define SE_MUST_USE_RESULT TF_MUST_USE_RESULT