Use pangocairo for all Linux builds

content/content_common.gypi

Index: content/content_common.gypi
diff --git a/content/content_common.gypi b/content/content_common.gypi
index 4bbba88a135554141b843b9a077a1f73fb94eec6..8d0968845dd443bd7c9792d9f6ff0d4a7d00a3aa 100644
--- a/content/content_common.gypi
+++ b/content/content_common.gypi
@@ -195,8 +195,8 @@
     'common/font_list.cc',
     'common/font_list.h',
     'common/font_list_android.cc',
-    'common/font_list_linux.cc',
     'common/font_list_mac.mm',
+    'common/font_list_pango.cc',
     'common/font_list_win.cc',
     'common/gamepad_hardware_buffer.h',
     'common/gamepad_messages.h',
@@ -453,9 +453,6 @@
       ],
     }],
     ['use_x11 == 1', {
-      'dependencies': [
-        '../build/linux/system.gyp:pangocairo',
-      ],
       'include_dirs': [
         '<(DEPTH)/third_party/angle/include',
       ],
@@ -465,6 +462,15 @@
         ],
       },
     }],
+    ['use_pango == 1', {
+      'dependencies': [
+        '../build/linux/system.gyp:pangocairo',
+      ],
+    }, {  # use_pango == 0
+      'sources!': [
+        'common/font_list_pango.cc',
+      ],
+    }],
     ['use_x11 == 1 and (target_arch != "arm" or chromeos == 0)', {
       'sources': [
         'common/gpu/x_util.cc',