net: Add NOLINT(build/header_guard) in header files under net/

This CL adds NOLINT(build/header_guard) in header files used for
generating enum values to suppress Tricium warning.

The comments and guard code are copied from
net/base/net_error_list.h

Bug: n/a
Change-Id: I88df01fe3427a8b2702813457e391a18185adfaa
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2061929
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742133}

Author: nhiroki

net/base/load_states_list.h

@@ -3,9 +3,10 @@
 // found in the LICENSE file.
 
 // This file intentionally does not have header guards, it's included
-// inside a macro to generate values. The following line silences a
-// presubmit warning that would otherwise be triggered by this:
+// inside a macro to generate enum values. The following line silences a
+// presubmit and Tricium warning that would otherwise be triggered by this:
 // no-include-guard-because-multiply-included
+// NOLINT(build/header_guard)
 
 // This is the list of load states and their values. For the enum values,
 // include the file "net/base/load_states.h".

net/base/net_info_source_list.h

@@ -4,8 +4,9 @@
 
 // This file intentionally does not have header guards, it's included
 // inside a macro to generate enum values. The following line silences a
-// presubmit warning that would otherwise be triggered by this:
+// presubmit and Tricium warning that would otherwise be triggered by this:
 // no-include-guard-because-multiply-included
+// NOLINT(build/header_guard)
 
 // Flags used to request different types of information about the current state
 // of a URLRequestContext.

net/filter/source_stream_type_list.h

@@ -3,9 +3,10 @@
 // found in the LICENSE file.
 
 // This file intentionally does not have header guards, it's included
-// inside a macro to generate values. The following line silences a
-// presubmit warning that would otherwise be triggered by this:
+// inside a macro to generate enum values. The following line silences a
+// presubmit and Tricium warning that would otherwise be triggered by this:
 // no-include-guard-because-multiply-included
+// NOLINT(build/header_guard)
 
 // Specifies type of filters that can be created.  Do not change the values
 // of this enum; it is preserved in a histogram.

net/http/http_status_code_list.h

@@ -3,9 +3,10 @@
 // found in the LICENSE file.
 
 // This file intentionally does not have header guards, it's included
-// inside a macro to generate enum. The following line silences a
-// presubmit warning that would otherwise be triggered by this:
+// inside a macro to generate enum values. The following line silences a
+// presubmit and Tricium warning that would otherwise be triggered by this:
 // no-include-guard-because-multiply-included
+// NOLINT(build/header_guard)
 
 // This file contains the list of HTTP status codes. Taken from IANA HTTP Status
 // Code Registry.