Limit use of default namespace in tests and utility programs (#71). r=bryner

- main is now the only thing you'll find in the default namespace.
   Everything else has been moved into an unnamed namespace.

http://groups.google.com/group/airbag-dev/browse_thread/thread/14130a0284a0307f


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@63 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/address_map_unittest.cc

@@ -47,6 +47,8 @@
 
 #define ASSERT_EQ(e1, e2) ASSERT_TRUE((e1) == (e2))
 
+namespace {
+
 using google_airbag::AddressMap;
 using google_airbag::linked_ptr;
 
@@ -185,6 +187,8 @@ static bool RunTests() {
   return true;
 }
 
+}  // namespace
+
 int main(int argc, char **argv) {
   return RunTests() ? 0 : 1;
 }