Revert of [Bindings] Remove aggregation of generated binding code

third_party/WebKit/Source/bindings/modules/v8/BUILD.gn

Index: third_party/WebKit/Source/bindings/modules/v8/BUILD.gn
diff --git a/third_party/WebKit/Source/bindings/modules/v8/BUILD.gn b/third_party/WebKit/Source/bindings/modules/v8/BUILD.gn
index 3b658a4710db522659c69d4209910a74776a2754..4da3e425bb39ea306be33e25a8fdfb5253d3dbbc 100644
--- a/third_party/WebKit/Source/bindings/modules/v8/BUILD.gn
+++ b/third_party/WebKit/Source/bindings/modules/v8/BUILD.gn
@@ -13,13 +13,24 @@
 group("bindings_modules_generated") {
   public_deps = [
     ":bindings_modules_impl_generated",
+    ":bindings_modules_v8_generated_aggregate",
+    ":bindings_modules_v8_generated_individual",
     ":bindings_modules_v8_generated_init_partial",
-    ":generate_bindings_modules_v8_interfaces",
-    ":generate_bindings_modules_v8_partial_interfaces",
+    ":bindings_modules_v8_generated_partial_aggregate",
+    ":bindings_modules_v8_generated_partial_individual",
   ]
 }
 
-idl_compiler("generate_bindings_modules_v8_interfaces") {
+# bindings_modules_generated_aggregate in modules/v8/generated.gyp
+aggregate_generated_bindings("bindings_modules_v8_generated_aggregate") {
+  sources = modules_definition_idl_files
+  component_dir = "modules"
+  is_partial = false
+  outputs = bindings_modules_generated_aggregate_files
+}
+
+# bindings_modules_generated_individual in modules/v8/generated.gyp
+idl_compiler("bindings_modules_v8_generated_individual") {
   # Note in GYP this is modules_interface_idl_files but this variable is just
   # defined to modules_definition_idl_files.
   sources = modules_definition_idl_files
@@ -28,6 +39,7 @@
   target_component = "modules"
 }
 
+# bindings_modules_impl_generated in modules/v8/generated.gyp
 idl_impl("bindings_modules_impl_generated") {
   sources = modules_dictionary_idl_files
   outputs = bindings_modules_generated_union_type_files +
@@ -36,7 +48,8 @@
   target_component = "modules"
 }
 
-idl_compiler("generate_bindings_modules_v8_partial_interfaces") {
+# bindings_modules_generated_individual in modules/v8/generated.gyp
+idl_compiler("bindings_modules_v8_generated_partial_individual") {
   # Note in GYP this is modules_interface_idl_files but this variable is just
   # defined to modules_definition_idl_files.
   sources = core_idl_with_modules_dependency_files +
@@ -44,6 +57,15 @@
   output_dir = bindings_modules_v8_output_dir
   output_name_suffix = "Partial"
   target_component = "modules"
+}
+
+# bindings_modules_generated_aggregate in modules/v8/generated.gyp
+aggregate_generated_bindings(
+    "bindings_modules_v8_generated_partial_aggregate") {
+  sources = core_idl_with_modules_dependency_files
+  component_dir = "modules"
+  is_partial = true
+  outputs = bindings_modules_generated_partial_aggregate_files
 }
 
 # GYP version: Source/bindings/modules/v8/generated.gyp:bindings_modules_v8_generated_init_partial