Add Clang static analyzer to Clang toolchain defs in GN

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 87 matching lines @@
   # and whatever else without interference from each other.
   'catapult_revision': 'e1e778d78de1742159a4247af6789b371e3aae59',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.
   'libfuzzer_revision': '78ee52d0c69db57fe0e984d252a991390e7d6c9b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-node-modules
   # and whatever else without interference from each other.
   'devtools_node_modules_revision': '6226d6cd80aaf2e5295ed460cf73ef6a582e4d78',
+  # Three lines of non-changing comments so that
+  # the commit queue can handle CLs rolling libFuzzer
+  # and whatever else without interference from each other.
+  'scanbuild_revision': '15bd7ca2934162c51654ddffc52933e45f95e7ef',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.
 # If you need to add a new host, contact chrome infrastracture team.
 allowed_hosts = [
   'android.googlesource.com',
   'boringssl.googlesource.com',
   'chromium.googlesource.com',
   'pdfium.googlesource.com',
   'skia.googlesource.com',
@@ skipping 178 matching lines @@
 
   'src/third_party/re2/src':
     Var('chromium_git') + '/external/github.com/google/re2.git' + '@' + 'dba3349aba83b5588e85e5ecf2b56c97f2d259b7',
 
   # Used for building libFuzzers (only supports Linux).
   'src/third_party/libFuzzer/src':
     Var('chromium_git') + '/chromium/llvm-project/llvm/lib/Fuzzer.git' + '@' +  Var('libfuzzer_revision'),
 
   'src/third_party/visualmetrics/src':
     Var('chromium_git') + '/external/github.com/WPO-Foundation/visualmetrics.git' + '@' +  '1edde9d2fe203229c895b648fdec355917200ad6',
+
+  'src/third_party/scan-build/src':
+    Var('chromium_git') + '/chromium/llvm-project/cfe/tools/scan-build.git' + '@' +  Var('scanbuild_revision'),
 }
 
 
 deps_os = {
   'win': {
     'src/third_party/cygwin':
       Var('chromium_git') + '/chromium/deps/cygwin.git' + '@' + 'c89e446b273697fadf3a10ff1007a97c0b7de6df',
 
     'src/third_party/psyco_win32':
       Var('chromium_git') + '/chromium/deps/psyco_win32.git' + '@' + 'f5af9f6910ee5a8075bbaeed0591469f1661d868',
@@ skipping 813 matching lines @@
 ]
 
 recursedeps = [
   # buildtools provides clang_format, libc++, and libc++abi
   'src/buildtools',
   # android_tools manages the NDK.
   'src/third_party/android_tools',
   # ANGLE manages DEPS that it also owns the build files for, such as dEQP.
   ("src/third_party/angle", "DEPS.chromium"),
 ]