Added android_browser_process.

content/content_app.gypi

Index: content/content_app.gypi
diff --git a/content/content_app.gypi b/content/content_app.gypi
index 07f7b5a56750c73b971544169941067ef139ebba..ec457ff5a962e03f34c64fe304eb250d8fdad772 100644
--- a/content/content_app.gypi
+++ b/content/content_app.gypi
@@ -15,6 +15,8 @@
   'sources': [
     'app/android/content_jni_registrar.cc',
     'app/android/content_jni_registrar.h',
+    'app/android/content_main.cc',
+    'app/android/content_main.h',
     'app/android/library_loader_hooks.cc',
     'app/content_main.cc',
     'app/content_main_runner.cc',
@@ -32,5 +34,16 @@
         '../sandbox/sandbox.gyp:sandbox',
       ],
     }],
+    ['OS=="android"', {
+      'source!': [
+        'app/content_main.cc',
+      ],
+      'include_dirs': [
+        '<(SHARED_INTERMEDIATE_DIR)/content',
+      ],
+      'dependencies': [
+        'content.gyp:content_jni_headers',
+      ],
+    }],
   ],
 }