Add use_clibpard_aurax11 gyp flag to allow chromeos-chrome to access X11 Clipboard

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 99b336a99c9a2216ffd26a15419377a5c4104533..df6ccc6b9dbeb0863fd4eb0dc123a9ee9ec9bf33 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -35,6 +35,9 @@
 
             # Configure the build for small devices. See crbug.com/318413
             'embedded%': 0,
+
+            # Use aurax11 for clipboard implementation. This is true on linux_aura.
+            'use_clipboard_aurax11%': 0,

[tony, 2013/12/12 17:38:20]

You don't need to define this at the deepest nesting level.  You only need to
define it one level above when you use a conditional.

           },
           # Copy conditionally-set variables out one scope.
           'chromeos%': '<(chromeos)',
@@ -43,6 +46,7 @@
           'use_cras%': '<(use_cras)',
           'use_ozone%': '<(use_ozone)',
           'embedded%': '<(embedded)',
+          'use_clipboard_aurax11%': '<(use_clipboard_aurax11)',
 
           # Whether we are using Views Toolkit
           'toolkit_views%': 0,
@@ -122,6 +126,7 @@
         'use_ash%': '<(use_ash)',
         'use_cras%': '<(use_cras)',
         'use_ozone%': '<(use_ozone)',
+        'use_clipboard_aurax11%': '<(use_clipboard_aurax11)',

[tony, 2013/12/12 17:38:20]

I think this is the first depth you need to define the value to 0.  I would move
it down next to the other values declared at this level.

         'embedded%': '<(embedded)',
         'use_openssl%': '<(use_openssl)',
         'enable_viewport%': '<(enable_viewport)',
@@ -236,6 +241,7 @@
       'use_cras%': '<(use_cras)',
       'use_ozone%': '<(use_ozone)',
       'use_ozone_evdev%': '<(use_ozone_evdev)',
+      'use_clipboard_aurax11%': '<(use_clipboard_aurax11)',
       'embedded%': '<(embedded)',
       'use_openssl%': '<(use_openssl)',
       'enable_viewport%': '<(enable_viewport)',
@@ -548,6 +554,10 @@
           'use_x11%': 1,
         }],
 
+        ['OS=="linux" and use_aura==1 and chromeos==0', {
+          'use_clipboard_aurax11%': 1,
+        }],
+
         # Flags to use glib.
         ['OS=="win" or OS=="mac" or OS=="ios" or OS=="android" or embedded==1', {
           'use_glib%': 0,
@@ -888,6 +898,7 @@
     'use_cairo%': '<(use_cairo)',
     'use_ozone%': '<(use_ozone)',
     'use_ozone_evdev%': '<(use_ozone_evdev)',
+    'use_clipboard_aurax11%': '<(use_clipboard_aurax11)',
     'toolkit_uses_gtk%': '<(toolkit_uses_gtk)',
     'desktop_linux%': '<(desktop_linux)',
     'use_x11%': '<(use_x11)',
@@ -2133,6 +2144,9 @@
       ['use_x11==1', {
         'defines': ['USE_X11=1'],
       }],
+      ['use_clipboard_aurax11==1', {
+        'defines': ['USE_CLIPBOARD_AURAX11=1'],
+      }],
       ['enable_one_click_signin==1', {
         'defines': ['ENABLE_ONE_CLICK_SIGNIN'],
       }],