Adds the ability for the renderer to create the mojo channel

content/content_common.gypi

Index: content/content_common.gypi
diff --git a/content/content_common.gypi b/content/content_common.gypi
index a97dc654ff84390835bc58d89f1330a5b0ef6268..1c3a3a6d95f95cdb24508de09c11cb0e253b07b0 100644
--- a/content/content_common.gypi
+++ b/content/content_common.gypi
@@ -321,6 +321,9 @@
     'common/message_router.cc',
     'common/message_router.h',
     'common/mime_registry_messages.h',
+    'common/mojo/mojo_channel_init.cc',
+    'common/mojo/mojo_channel_init.h',
+    'common/mojo/mojo_messages.h',
     'common/navigation_gesture.h',
     'common/net/url_fetcher.cc',
     'common/net/url_request_user_data.cc',
@@ -476,6 +479,19 @@
         'content.gyp:webkit_version',
       ],
     }],
+    # TODO(sky): conditional temporary until mojo is building on android and mac.
+    ['OS=="android" or OS=="mac"', {
+      'sources!': [
+        'common/mojo/mojo_channel_init.cc',
+        'common/mojo/mojo_channel_init.h',
+      ],
+    }, {
+      'dependencies': [
+        '../mojo/mojo.gyp:mojo_environment_chromium',
+        '../mojo/mojo.gyp:mojo_system',
+        '../mojo/mojo.gyp:mojo_system_impl',
+      ],
+    }],
     ['OS=="mac"', {
       'sources': [
         'common/gpu/client/gpu_memory_buffer_impl_io_surface.cc',