Convert PowerSaveBlockResourceThrottle to be client of WakeLock mojo service.

Wake Lock is a Mojo interface that wraps PowerSaveBlocker. As part of the
creation of standalone Device Service, all browser-side clients of
PowerSaveBlocker should be converted to be clients of the Wake Lock Mojo
interface instead.

BUG=689410
[email protected], for mechanical changes to //content/browser/BUILD.gn

Review-Url: https://codereview.chromium.org/2893873002
Cr-Commit-Position: refs/heads/master@{#473076}
diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
index 5bc5787..785f909 100644
--- a/content/browser/BUILD.gn
+++ b/content/browser/BUILD.gn
@@ -892,8 +892,6 @@
     "loader/netlog_observer.h",
     "loader/null_resource_controller.cc",
     "loader/null_resource_controller.h",
-    "loader/power_save_block_resource_throttle.cc",
-    "loader/power_save_block_resource_throttle.h",
     "loader/redirect_to_file_resource_handler.cc",
     "loader/redirect_to_file_resource_handler.h",
     "loader/resource_buffer.cc",
@@ -935,6 +933,8 @@
     "loader/upload_progress_tracker.h",
     "loader/url_loader_factory_impl.cc",
     "loader/url_loader_factory_impl.h",
+    "loader/wake_lock_resource_throttle.cc",
+    "loader/wake_lock_resource_throttle.h",
     "loader_delegate_impl.cc",
     "loader_delegate_impl.h",
     "mach_broker_mac.h",