[Chromoting] Remove wildcard ('*') from remoting_all target.

remoting/remoting_host.gypi

Index: remoting/remoting_host.gypi
diff --git a/remoting/remoting_host.gypi b/remoting/remoting_host.gypi
index 59175fe786020e80a220f8945e908d391b788dbd..151e3f086fe1c86f7039441a619f04f17ea70374 100644
--- a/remoting/remoting_host.gypi
+++ b/remoting/remoting_host.gypi
@@ -3,12 +3,6 @@
 # found in the LICENSE file.
 
 {
-  'includes': [
-    'remoting_host_linux.gypi',
-    'remoting_host_mac.gypi',
-    'remoting_host_win.gypi',
-  ],
-
   'variables': {
     'conditions': [
       # Remoting host is supported only on Windows, OSX and Linux (with X11).
@@ -30,6 +24,22 @@
   },
 
   'conditions': [
+    ['OS=="mac"', {
+      'includes': [
+        'remoting_host_mac.gypi',
+      ],
+    }],
+    ['OS=="win"', {
+      'includes': [
+        'remoting_host_win.gypi',
+      ],
+    }],
+    ['OS=="linux"', {
+      'includes': [
+        'remoting_host_linux.gypi',
+      ],
+    }],
+
     ['enable_remoting_host==1', {
       'targets': [
         {