Very basic Android browser-side compositing support.

content/content_browser.gypi

Index: content/content_browser.gypi
diff --git a/content/content_browser.gypi b/content/content_browser.gypi
index 355f036959368a192799961f9aefd02a96b763a1..2a7b6f9a0195431f5ca5d9a39d4463ab6e0eb046 100644
--- a/content/content_browser.gypi
+++ b/content/content_browser.gypi
@@ -31,10 +31,10 @@
     'port/browser/render_widget_host_view_port.h',
     'port/browser/smooth_scroll_gesture.h',
     'public/browser/access_token_store.h',
+    'public/browser/android/compositor.h',
     'public/browser/android/content_view_core.h',
     'public/browser/android/devtools_auth.h',
     'public/browser/android/draw_delegate.h',
-    'public/browser/android/graphics_context.h',
     'public/browser/browser_accessibility_state.h',
     'public/browser/browser_child_process_host.h',
     'public/browser/browser_child_process_host_delegate.cc',
@@ -215,6 +215,7 @@
     'browser/android/devtools_auth.cc',
     'browser/android/draw_delegate_impl.h',
     'browser/android/draw_delegate_impl.cc',
+    'browser/android/graphics_context.h',
     'browser/android/graphics_context.cc',
     'browser/android/load_url_params.cc',
     'browser/android/load_url_params.h',
@@ -527,6 +528,8 @@
     'browser/renderer_host/clipboard_message_filter.cc',
     'browser/renderer_host/clipboard_message_filter.h',
     'browser/renderer_host/clipboard_message_filter_mac.mm',
+    'browser/renderer_host/compositor_impl_android.h',
+    'browser/renderer_host/compositor_impl_android.cc',
     'browser/renderer_host/compositing_iosurface_mac.h',
     'browser/renderer_host/compositing_iosurface_mac.mm',
     'browser/renderer_host/cross_site_resource_handler.cc',