wake lock: Fix a few style issues after #670009

Address a few nitpicks raised by engedy@ in
https://chromium-review.googlesource.com/c/chromium/src/+/1652939.

Bug: 967669
Change-Id: I71abcb6a81b839b5d842dadc6199009378e30295
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1664074
Auto-Submit: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Commit-Queue: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Cr-Commit-Position: refs/heads/master@{#670050}

chrome/browser/wake_lock/wake_lock_permission_context.h

@@ -7,7 +7,6 @@
 
 #include "base/macros.h"
 #include "chrome/browser/permissions/permission_context_base.h"
-#include "components/content_settings/core/common/content_settings.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 
 class WakeLockPermissionContext : public PermissionContextBase {

chrome/browser/wake_lock/wake_lock_permission_context_unittest.cc

@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "chrome/browser/wake_lock/wake_lock_permission_context.h"
+
 #include "chrome/test/base/testing_profile.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "content/public/test/test_browser_thread_bundle.h"
@@ -23,11 +24,11 @@ TEST_F(WakeLockPermissionContextTests, InsecureOriginsAreRejected) {
   GURL insecure_url("http://www.example.com");
   GURL secure_url("https://www.example.com");
 
-  const ContentSettingsType wake_lock_types[] = {
+  const ContentSettingsType kWakeLockTypes[] = {
       CONTENT_SETTINGS_TYPE_WAKE_LOCK_SCREEN,
       CONTENT_SETTINGS_TYPE_WAKE_LOCK_SYSTEM};
 
-  for (const auto& content_settings_type : wake_lock_types) {
+  for (const auto& content_settings_type : kWakeLockTypes) {
     WakeLockPermissionContext permission_context(profile(),
                                                  content_settings_type);
     EXPECT_EQ(CONTENT_SETTING_BLOCK,