Continue with the FreeBSD port - this version builds and links, though...

build/common.gypi

Index: build/common.gypi
===================================================================
--- build/common.gypi	(revision 25977)
+++ build/common.gypi	(working copy)
@@ -113,7 +113,7 @@
     'linux_sandbox_path%': '',
 
     'conditions': [
-      ['OS=="linux"', {
+      ['OS=="linux" or OS=="freebsd"', {
         'conditions': [
           ['branding=="Chrome" or linux_chromium_breakpad==1', {
             'linux_breakpad%': 1,
@@ -349,7 +349,7 @@
     },
   },
   'conditions': [
-    ['OS=="linux"', {
+    ['OS=="linux" or OS=="freebsd"', {
       'target_defaults': {
         # Enable -Werror by default, but put it in a variable so it can
         # be disabled in ~/.gyp/include.gypi on the valgrind builders.
@@ -561,6 +561,14 @@
         ],
       },
     }],
+    # Note that most FreeBSD options are set above, with Linux
+    ['OS=="freebsd"', {
+      'target_defaults': {
+        'ldflags': [
+          '-Wl,--no-keep-memory',
+        ],
+      },
+    }],
     ['OS=="mac"', {
       'target_defaults': {
         'variables': {