Start transition the metrics library to non-static API. Use gmock in tests.

src/platform/metrics/Makefile

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # Makefile for metrics utilities -- library, client and daemon
 #
 
 CCONFIG = $(shell $(PKG_CONFIG) --cflags dbus-1 glib-2.0 dbus-glib-1)
 LDCONFIG = $(shell $(PKG_CONFIG) --libs dbus-1 glib-2.0 gthread-2.0 dbus-glib-1)
 
@@ skipping 10 matching lines @@
 LIB_OBJS = \
         metrics_library.o
 DAEMON_OBJS = \
         metrics_daemon.o \
         metrics_daemon_main.o
 TESTDAEMON_OBJS = \
         metrics_daemon.o \
         metrics_daemon_test.o
 
 DAEMON_LDFLAGS = $(LDCONFIG) -lrt -lbase -lpthread -lgflags
-TESTDAEMON_LIBS = -lgtest
+TESTDAEMON_LIBS = -lgmock -lgtest
 
 all: $(LIB) $(SHAREDLIB) $(CLIENT) $(DAEMON)
 
 tests: $(DAEMON_TEST)
 
 $(CLIENT): $(CLIENT_OBJS) $(SHAREDLIB)
         $(CXX) $(LDFLAGS) $^ -o $@
 
 $(DAEMON): $(DAEMON_OBJS) $(SHAREDLIB)
         $(CXX) -o $@ $^ $(DAEMON_LDFLAGS)
@@ skipping 25 matching lines @@
         install $(CLIENT) $(DESTDIR)/usr/bin
         install $(DAEMON) $(DESTDIR)/usr/bin
         install $(LIB) $(DESTDIR)/usr/lib
         install $(SHAREDLIB) $(DESTDIR)/usr/lib
         install metrics_library.h $(DESTDIR)/usr/include
         install syslog_parser.sh $(DESTDIR)/usr/bin
         install omaha_tracker.sh $(DESTDIR)/usr/sbin
 
 clean:
         rm -f $(CLIENT) $(DAEMON) $(LIB) $(SHAREDLIB) $(TESTDAEMON) *.o