openbsd and freebsd fixes for base

base/base_paths_linux.cc

Index: base/base_paths_linux.cc
diff --git a/base/base_paths_linux.cc b/base/base_paths_linux.cc
index 9f940cb986cb4d6145401c1d3c0a74dbf380e2fe..b082eb3b3d71e6811ed385541df2df7268d1bb0e 100644
--- a/base/base_paths_linux.cc
+++ b/base/base_paths_linux.cc
@@ -66,6 +66,10 @@ bool PathProviderPosix(int key, FilePath* result) {
       }
       *result = FilePath(bin_dir);
       return true;
+#elif defined(OS_OPENBSD)
+      // There is currently no way to get the executable path on OpenBSD
+      *result = FilePath("/usr/local/chrome/chrome");
+      return true;
 #endif
     }
     case base::DIR_SOURCE_ROOT: {