Split bundle generation steps so that API registration is generated in browser, not common.

chrome/common/extensions/api/BUILD.gn

Index: chrome/common/extensions/api/BUILD.gn
diff --git a/chrome/common/extensions/api/BUILD.gn b/chrome/common/extensions/api/BUILD.gn
index d4362fb78091c036805a18b9617a50fe8e11445e..c877566ca769e80f62bbbc9b9bfab2423982b3d1 100644
--- a/chrome/common/extensions/api/BUILD.gn
+++ b/chrome/common/extensions/api/BUILD.gn
@@ -2,53 +2,17 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//build/config/features.gni")
 import("//extensions/generated_extensions_api.gni")
+import("schemas.gni")
 
-gypi_values = exec_script(
-    "//build/gypi_to_gn.py",
-    [ rebase_path("api.gyp") ],
-    "scope",
-    [ "api.gyp" ])
-
-# Common sources that are both bundled and compiled.
 # GYP version: chrome/common/extensions/api/api.gyp:chrome_api
 generated_extensions_api("api") {
-  if (is_android) {
-    # Should be eliminated. See crbug.com/305852.
-    sources = gypi_values.android_schema_files
-  } else {
-    sources = gypi_values.main_schema_files
-    if (is_chromeos) {
-      sources += gypi_values.chromeos_schema_files
-      if (is_chrome_branded) {
-        sources += gypi_values.chromeos_branded_schema_files
-      }
-    }
-    if (enable_webrtc) {
-      sources += gypi_values.webrtc_schema_files
-    }
-  }
-
-  if (!is_android) {
-    uncompiled_sources = gypi_values.main_non_compiled_schema_files
-  }
-
-  impl_dir = "//chrome/browser/extensions/api"
-  root_namespace = "extensions::api::%(namespace)s"
+  schemas = true
   bundle = true
+}
 
-  deps = [
-    # Different APIs include some headers from chrome/common that in turn
-    # include generated headers from these targets.
-    # TODO(brettw) this should be made unnecessary if possible.
-    "//components/metrics/proto",
-
-    "//content/public/browser",
-    "//skia",
-    "//sync",
-  ]
-  if (is_chromeos) {
-    # deps += [ "<(DEPTH)/chrome/chrome.gyp:drive_proto" ]  TODO)GYP)
-  }
+# GYP version: chrome/browser/extensions/api/api.gyp:chrome_api_registration
+generated_extensions_api("api_registration") {

[Yoyo Zhou, 2014/08/23 01:15:03]

Logically, this target should live in chrome/browser/extensions/api instead of
here, but the sources defined in schemas.gni are treated as paths relative to
the BUILD.gn (not to the include file), so that doesn't work as
straightforwardly. Hopefully it should be enough that this target is separate
from the api target.

+  impl_dir = "//chrome/browser/extensions/api"
+  bundle_registration = true
 }