perfetto: Fix two small build issues.

- Missing temp_file.h in include/perfetto/base/BUILD.gn
- Missing noexcept on Watchdog::Timer::Timer

Change-Id: I3b76d57e60a73cb5d4f5db5c749d091dfe33caa7
diff --git a/src/base/watchdog_posix.cc b/src/base/watchdog_posix.cc
index 9864e7b..5f8755f 100644
--- a/src/base/watchdog_posix.cc
+++ b/src/base/watchdog_posix.cc
@@ -247,7 +247,7 @@
   }
 }
 
-Watchdog::Timer::Timer(Timer&& other) {
+Watchdog::Timer::Timer(Timer&& other) noexcept {
   timerid_ = other.timerid_;
   other.timerid_ = nullptr;
 }