[DevTools] Prepare inspector_protocol build to move.

third_party/WebKit/Source/core/inspector/BUILD.gn

Index: third_party/WebKit/Source/core/inspector/BUILD.gn
diff --git a/third_party/WebKit/Source/core/inspector/BUILD.gn b/third_party/WebKit/Source/core/inspector/BUILD.gn
index 93e89e44aff67197ead1a01fa809dbd3a9208466..e272cea84d557a7ba7614dafdc6d0407d15cf224 100644
--- a/third_party/WebKit/Source/core/inspector/BUILD.gn
+++ b/third_party/WebKit/Source/core/inspector/BUILD.gn
@@ -4,6 +4,8 @@
 
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/core/core.gni")
+import(
+    "//third_party/WebKit/Source/platform/inspector_protocol/inspector_protocol.gni")
 
 action("instrumentation_sources") {
   script = "CodeGeneratorInstrumentation.py"
@@ -34,32 +36,7 @@ action("protocol_sources") {
   deps = [
     ":protocol_version",
   ]
-  sources = [
-    "../../platform/inspector_protocol/Allocator_h.template",
-    "../../platform/inspector_protocol/Array_h.template",
-    "../../platform/inspector_protocol/BackendCallback_h.template",
-    "../../platform/inspector_protocol/CodeGenerator.py",
-    "../../platform/inspector_protocol/Collections_h.template",
-    "../../platform/inspector_protocol/DispatcherBase_cpp.template",
-    "../../platform/inspector_protocol/DispatcherBase_h.template",
-    "../../platform/inspector_protocol/ErrorSupport_cpp.template",
-    "../../platform/inspector_protocol/ErrorSupport_h.template",
-    "../../platform/inspector_protocol/Exported_h.template",
-    "../../platform/inspector_protocol/Forward_h.template",
-    "../../platform/inspector_protocol/FrontendChannel_h.template",
-    "../../platform/inspector_protocol/Imported_h.template",
-    "../../platform/inspector_protocol/Maybe_h.template",
-    "../../platform/inspector_protocol/Object_cpp.template",
-    "../../platform/inspector_protocol/Object_h.template",
-    "../../platform/inspector_protocol/Parser_cpp.template",
-    "../../platform/inspector_protocol/Parser_h.template",
-    "../../platform/inspector_protocol/Protocol_cpp.template",
-    "../../platform/inspector_protocol/TypeBuilder_cpp.template",
-    "../../platform/inspector_protocol/TypeBuilder_h.template",
-    "../../platform/inspector_protocol/ValueConversions_h.template",
-    "../../platform/inspector_protocol/Values_cpp.template",
-    "../../platform/inspector_protocol/Values_h.template",
-  ]
+  sources = inspector_protocol_sources
   inputs = [
     "browser_protocol.json",
     "../../platform/v8_inspector/js_protocol.json",
@@ -126,6 +103,8 @@ action("protocol_sources") {
   ]
 
   args = [
+    "--jinja_dir",
+    rebase_path("../../../../", root_build_dir),  # jinja is in chromium's third_party
     "--output_base",
     rebase_path(blink_core_output_dir, root_build_dir),
     "--config",
@@ -133,9 +112,31 @@ action("protocol_sources") {
   ]
 }
 
+action("protocol_compatibility_check") {
+  script = "../../platform/inspector_protocol/CheckProtocolCompatibility.py"
+
+  inputs = [
+    "browser_protocol.json",
+    "../../platform/v8_inspector/js_protocol.json",
+  ]
+  _stamp = "$blink_core_output_dir/inspector/browser_protocol.stamp"
+  outputs = [
+    _stamp,
+  ]
+
+  args = [
+    "--stamp",
+    rebase_path(_stamp, root_build_dir),
+    rebase_path("browser_protocol.json", root_build_dir),
+    rebase_path("../../platform/v8_inspector/js_protocol.json", root_build_dir),
+  ]
+}
+
 action("protocol_version") {
-  script =
-      "../../platform/inspector_protocol/generate-inspector-protocol-version"
+  deps = [
+    ":protocol_compatibility_check",
+  ]
+  script = "../../platform/inspector_protocol/ConcatenateProtocols.py"
 
   inputs = [
     "browser_protocol.json",
@@ -147,9 +148,8 @@ action("protocol_version") {
   ]
 
   args = [
-    "--o",
-    rebase_path(output_file, root_build_dir),
     rebase_path("browser_protocol.json", root_build_dir),
     rebase_path("../../platform/v8_inspector/js_protocol.json", root_build_dir),
+    rebase_path(output_file, root_build_dir),
   ]
 }