Tool added to extract network traffic annotations.

tools/traffic_annotation/auditor/README.md

Index: tools/traffic_annotation/auditor/README.md
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+# Network Traffic Annotation Auditor
+This tool runs the clang tool for extraction of Network Traffic Annotations
+from chromium source code and collects and summarizes its outputs.
+
+## Building
+ninja -C [build directory] traffic_annotation_auditor

[battre, 2017/04/07 08:42:28]

`...`

+
+## Usage
+traffic_annotation_auditor [OPTION]... [path_filter]...

[battre, 2017/04/07 08:42:28]

`...`

[Ramin Halavati, 2017/04/07 11:33:32]

Done.

+Extracts network traffic annotations from source files. If path filter(s) are
+specified, only those directories of the source will be analyzed.
+
+Options:

[battre, 2017/04/07 08:42:28]

did you check how the following lines are rendered by markdown?

should all of this go into ``` ```?

[Ramin Halavati, 2017/04/07 11:33:32]

Replaced them with a reference to --help as it was redundant.

+  -h, --help              Shows help.
+  --build-dir             Path to the build directory from which the
+                            annotations will be extracted.
+  --extractor-output-dir  Path to the directory that extracted
+                            partial files will be written to. Will
+                            be automatically generated and deleted
+                            if not specified.
+  --extracted-input-dir   Path to a directory where extracted
+                            partial annotations are already stored.
+                            If specified, build directory will be
+                            ignored.
+  --summary-file          Path to an output file with summary of
+                            extracted annotations.
+Example:
+  traffic_annotation_auditor --build-dir=out/Debug --summary-file=report.txt
+
+
+## Running on Windows
+Before running the program as above, you should build COMPLETE chromium with
+clang with keeprsp switch as follows:
+1. gn args [build_dir, e.g. out\Debug]

[battre, 2017/04/07 08:42:28]

here and in the following ` `

[Ramin Halavati, 2017/04/07 11:33:32]

Done.

+2. add is_clang=true to the opened text file and save and close it.
+3. ninja -C [build_dir] -d keeprsp -k 1000