Break up the chrome/common:common target

chrome/common/BUILD.gn

Index: chrome/common/BUILD.gn
diff --git a/chrome/common/BUILD.gn b/chrome/common/BUILD.gn
index e975e3e0f8f3d243296a4b7c0fab380f9adba013..5917ab6bebf546525840f5929d05e72e2034a3fc 100644
--- a/chrome/common/BUILD.gn
+++ b/chrome/common/BUILD.gn
@@ -574,6 +574,24 @@ process_version("version_header") {
   output = "$target_gen_dir/chrome_version.h"
 }
 
+# This target allows using logging_chrome without depending on the rest of
+# chrome/common.
+static_library("logging") {

[agrieve, 2017/06/14 15:45:48]

Would this make more sense as a source_set?

gn help static_library says:

  If you only need the static library for intermediate results in the build,
  you should consider a source_set instead since it will skip the (potentially
  slow) step of creating the intermediate library file.

+  sources = [
+    "logging_chrome.cc",
+    "logging_chrome.h",
+  ]
+  deps = [
+    ":constants",
+    "//base",
+    "//content/public/common",
+    "//ipc",
+  ]
+  if (is_win) {
+    deps += [ "//chrome/install_static:install_static_util" ]
+  }
+}
+
 static_library("constants") {
   sources = [
     "chrome_constants.cc",