Get rid of the base_paths target.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index b4a5c47a3cc975737099557b535bba2d92015870..a6d07b6bc78e4aaa273f9b55d80a1e6ba73d973d 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -87,35 +87,6 @@ if (is_nacl_nonsfi) {
   }
 }
 
-if (is_nacl) {
-  # None of the files apply to nacl, and we can't make an empty static library.
-  group("base_paths") {
-  }
-} else {
-  static_library("base_paths") {
-    sources = [
-      "base_paths.cc",
-      "base_paths.h",
-      "base_paths_android.cc",
-      "base_paths_android.h",
-      "base_paths_mac.h",
-      "base_paths_mac.mm",
-      "base_paths_posix.cc",
-      "base_paths_posix.h",
-      "base_paths_win.cc",
-      "base_paths_win.h",
-    ]
-
-    if (is_android || is_mac || is_ios) {
-      sources -= [ "base_paths_posix.cc" ]
-    }
-
-    configs += [ ":base_implementation" ]
-
-    visibility = [ ":base" ]
-  }
-}
-
 if (is_android) {
   config("android_system_libs") {
     libs = [ "log" ]  # Used by logging.cc.
@@ -1114,6 +1085,24 @@ component("base") {
     "win/wrapped_window_proc.h",
   ]
 
+  if (!is_nacl) {
+    sources += [
+      "base_paths.cc",
+      "base_paths.h",
+      "base_paths_android.cc",
+      "base_paths_android.h",
+      "base_paths_mac.h",
+      "base_paths_mac.mm",
+      "base_paths_posix.h",
+      "base_paths_win.cc",
+      "base_paths_win.h",
+    ]
+
+    if (is_linux) {
+      sources += [ "base_paths_posix.cc" ]
+    }
+  }
+
   all_dependent_configs = []
   defines = []
   data = []
@@ -1133,7 +1122,6 @@ component("base") {
   ]
 
   public_deps = [
-    ":base_paths",
     ":base_static",
     ":build_date",
     ":debugging_flags",