Add clang-format binaries and scripts for all platforms

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
index 48907ebf71a2a4f582202172a23ad30d2f2736ff..3c920ba81329dc2582ed95a9030a6e75d3ef8d00 100644
--- a/DEPS
+++ b/DEPS
@@ -687,6 +687,55 @@ hooks = [
                 "-s", "src/tools/gn/bin/linux/gn32.sha1",
     ],
   },
+  # Pull clang-format binaries from cloud storage using checked-in hashes.
+  {
+    "name": "clang_format_win",
+    "pattern": "src/third_party/clang_format/bin/win/clang-format.exe.sha1",
+    "action": [
+        "download_from_google_storage",
+        "--no_resume",
+        "--platform=win32",
+        "--no_auth",
+        "--bucket", "chromium-clang-format",
+        "-s", "src/third_party/clang_format/bin/win/clang-format.exe.sha1",
+    ],
+  },
+  {
+    "name": "clang_format_mac",
+    "pattern": "src/third_party/clang_format/bin/mac/clang-format.sha1",
+    "action": [
+        "download_from_google_storage",
+        "--no_resume",
+        "--platform=darwin",
+        "--no_auth",
+        "--bucket", "chromium-clang-format",
+        "-s", "src/third_party/clang_format/bin/mac/clang-format.sha1",
+    ],
+  },
+  {
+    "name": "clang_format_linux",
+    "pattern": "src/third_party/clang_format/bin/linux/clang-format.sha1",
+    "action": [
+        "download_from_google_storage",
+        "--no_resume",
+        "--platform=linux*",
+        "--no_auth",
+        "--bucket", "chromium-clang-format",
+        "-s", "src/third_party/clang_format/bin/linux/clang-format.sha1",
+    ],
+  },
+  {
+    "name": "clang_format_linux32",
+    "pattern": "src/third_party/clang_format/bin/linux/clang-format32.sha1",
+    "action": [
+        "download_from_google_storage",
+        "--no_resume",
+        "--platform=linux*",
+        "--no_auth",
+        "--bucket", "chromium-clang-format",
+        "-s", "src/third_party/clang_format/bin/linux/clang-format32.sha1",
+    ],
+  },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "name": "gyp",