[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

1 files changed, 3 insertions, 5 deletions

diff --git a/tensorflow/stream_executor/stream_executor_pimpl.h b/tensorflow/stream_executor/stream_executor_pimpl.h
index 69d0374d73..39af7115d8 100644
--- a/tensorflow/stream_executor/stream_executor_pimpl.h
+++ b/tensorflow/stream_executor/stream_executor_pimpl.h
@@ -37,8 +37,7 @@ limitations under the License.
 #include "tensorflow/stream_executor/stream_executor_internal.h"
 #include "tensorflow/stream_executor/trace_listener.h"
 
-namespace perftools {
-namespace gputools {
+namespace stream_executor {
 
 // Structure used for device memory leak checking.
 struct AllocRecord {
@@ -95,7 +94,7 @@ class StreamExecutor {
   // Parameters:
   //   spec: The MultiKernelLoaderSpec is usually generated as a compile-time
   //    constant into an appropriate namespace. For example, see
-  //    perftools::gputools::executor_sample::kKernelLoaderSpecs, from which a
+  //    stream_executor::executor_sample::kKernelLoaderSpecs, from which a
   //    MultiKernelLoaderSpec is selected.
   //   kernel: Outparam that the kernel is loaded into. A given Kernel
   //    instantiation should not be loaded into more than once.
@@ -803,7 +802,6 @@ inline Stream &Stream::ThenLaunch(ThreadDim thread_dims, BlockDim block_dims,
   return *this;
 }
 
-}  // namespace gputools
-}  // namespace perftools
+}  // namespace stream_executor
 
 #endif  // TENSORFLOW_STREAM_EXECUTOR_STREAM_EXECUTOR_PIMPL_H_