metrics: Update gyp file to use src/platform2/common-mk

We are moving the packages built by platform2's ebuild into src/platform2.
We need packages to use src/platform2/common-mk instead of
src/platform/common-mk.

BUG=chromium:378554
TEST=emerge-daisy platform2
TEST=trybot run on daisy, link, mario and duck

CQ-DEPEND=CL:201938

Change-Id: Ibe02d33d7d17a830f0d72cdb2597b8e97b1864da
Reviewed-on: https://chromium-review.googlesource.com/201982
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
diff --git a/metrics/metrics.gyp b/metrics/metrics.gyp
index 3d7c2d5..4a0b11a 100644
--- a/metrics/metrics.gyp
+++ b/metrics/metrics.gyp
@@ -65,7 +65,7 @@
         {
           'target_name': 'persistent_integer_test',
           'type': 'executable',
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'persistent_integer.cc',
             'persistent_integer_test.cc',
@@ -77,7 +77,7 @@
           'dependencies': [
             '../metrics/libmetrics-<(libbase_ver).gyp:libmetrics-<(libbase_ver)',
           ],
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'metrics_library_test.cc',
           ]
@@ -85,7 +85,7 @@
         {
           'target_name': 'timer_test',
           'type': 'executable',
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'timer.cc',
             'timer_test.cc',
@@ -101,7 +101,7 @@
           'dependencies': [
             'libmetrics_daemon',
           ],
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'metrics_daemon_test.cc',
           ]