Update traffic annotation auditor's switches path.

Traffic annotation auditor's clang tool switches path is changed to
absolute path, and data dependency on it is corrected.

TBR=msramek@chromium.org

Bug: 690323
Change-Id: If3dd10339745c601d6a4e4d077b5251defe37af6
Reviewed-on: https://chromium-review.googlesource.com/999612Reviewed-by: Ramin Halavati <rhalavati@chromium.org>
Reviewed-by: Martin Šrámek <msramek@chromium.org>
Commit-Queue: Ramin Halavati <rhalavati@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548751}

tools/traffic_annotation/auditor/BUILD.gn

@@ -61,6 +61,7 @@ source_set("auditor_sources") {
   ]
   data = [
     "safe_list.txt",
+    "traffic_annotation_extractor_switches.txt",
   ]
 
   public_deps = [

tools/traffic_annotation/auditor/traffic_annotation_auditor.cc

@@ -115,8 +115,10 @@ TrafficAnnotationAuditor::TrafficAnnotationAuditor(
   DCHECK(!build_path.empty());
   DCHECK(!clang_tool_path.empty());
 
+  base::FilePath switches_file =
+      base::MakeAbsoluteFilePath(source_path_.Append(kClangToolSwitchesPath));
   std::string file_content;
-  if (base::ReadFileToString(kClangToolSwitchesPath, &file_content)) {
+  if (base::ReadFileToString(switches_file, &file_content)) {
     clang_tool_switches_ = base::SplitString(
         file_content, "\n", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
   } else {

tools/traffic_annotation/bin/README.md

@@ -73,5 +73,4 @@ and land the resulting CL.
 The following two lines will be updated by the above script, and the modified
 README should be committed along with the updated .sha1 checksums.
 
-CLANG_REVISION = '328716'
-LASTCHANGE=71d65441b6c5409be898a817066b60d063380aa9-refs/heads/master@{#547990}
+LASTCHANGE=1b08944149719c77799148b275de114f3a9e0bc1-refs/heads/master@{#548701}
\ No newline at end of file

tools/traffic_annotation/bin/linux64/traffic_annotation_auditor.sha1

-f0cb9572c4457607bf510bbb8e73ca7112110991
+6a56dcc2fc9b5a93926f853605e118de3e71a98f
\ No newline at end of file

tools/traffic_annotation/bin/win32/traffic_annotation_auditor.exe.sha1

-dd8213fb7861df8f388b5929aa796f24fe9b64a3
+3e449720dfd7a23747f7320a57db3451fb751c56
\ No newline at end of file