[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, 2 insertions, 2 deletions

diff --git a/tensorflow/compiler/xla/executable_run_options.cc b/tensorflow/compiler/xla/executable_run_options.cc
index 1700c97718..99b8f0558e 100644
--- a/tensorflow/compiler/xla/executable_run_options.cc
+++ b/tensorflow/compiler/xla/executable_run_options.cc
@@ -36,12 +36,12 @@ DeviceMemoryAllocator* ExecutableRunOptions::allocator() const {
 }
 
 ExecutableRunOptions& ExecutableRunOptions::set_stream(
-    perftools::gputools::Stream* stream) {
+    stream_executor::Stream* stream) {
   stream_ = stream;
   return *this;
 }
 
-perftools::gputools::Stream* ExecutableRunOptions::stream() const {
+stream_executor::Stream* ExecutableRunOptions::stream() const {
   return stream_;
 }