Android: exclude dead code from android build

ui/ui.gyp

Index: ui/ui.gyp
diff --git a/ui/ui.gyp b/ui/ui.gyp
index 2aa50d4d259fb6e69234600b1420bda47af1efef..2d786f00ca5273bf491a00f9296819d50edba12d 100644
--- a/ui/ui.gyp
+++ b/ui/ui.gyp
@@ -883,9 +883,25 @@
         }],
         ['OS=="android"', {
           'sources!': [
+            'base/accessibility/accessible_text_utils.cc',
+            'base/accessibility/accessible_view_state.cc',
+            'base/animation/throb_animation.cc',
+            'base/default_theme_provider.cc',
             'base/dragdrop/drag_utils.cc',
             'base/dragdrop/drag_utils.h',
+            'base/events/event_utils.cc',
+            'base/keycodes/keyboard_code_conversion.cc',
+            'base/l10n/l10n_font_util.cc',
+            'base/models/button_menu_item_model.cc',
+            'base/models/dialog_model.cc',
+            'base/theme_provider.cc',
             'base/touch/touch_device.cc',
+            'base/touch/touch_editing_controller.cc',
+            'base/ui_base_types.cc',
+            'gfx/display_observer.cc',
+            'gfx/path.cc',
+            'gfx/selection_model.cc',
+            'gfx/switches.cc',
           ],
           'dependencies': [
             'ui_jni_headers',