Part 1: Refactor Android WebView graphics code

android_webview/android_webview.gyp

Index: android_webview/android_webview.gyp
diff --git a/android_webview/android_webview.gyp b/android_webview/android_webview.gyp
index 87cd12285270327cd6df29038efd061f1075b8ae..ff85ca8e47d258723d9ed7bade2b6e38cf7d86e5 100644
--- a/android_webview/android_webview.gyp
+++ b/android_webview/android_webview.gyp
@@ -104,6 +104,7 @@
         'browser/aw_download_manager_delegate.h',
         'browser/aw_form_database_service.cc',
         'browser/aw_form_database_service.h',
+        'browser/aw_gl_methods.h',
         'browser/aw_gl_surface.cc',
         'browser/aw_gl_surface.h',
         'browser/aw_http_auth_handler_base.cc',
@@ -130,6 +131,9 @@
         'browser/browser_view_renderer.cc',
         'browser/browser_view_renderer.h',
         'browser/browser_view_renderer_client.h',
+        'browser/browser_view_renderer_proxy.h',
+        'browser/compositor_proxy.cc',
+        'browser/compositor_proxy.h',
         'browser/deferred_gpu_command_service.cc',
         'browser/deferred_gpu_command_service.h',
         'browser/find_helper.cc',
@@ -139,6 +143,7 @@
         'browser/global_tile_manager_client.h',
         'browser/hardware_renderer.cc',
         'browser/hardware_renderer.h',
+        'browser/hardware_renderer_proxy.h',
         'browser/icon_helper.cc',
         'browser/icon_helper.h',
         'browser/input_stream.h',
@@ -171,8 +176,6 @@
         'browser/scoped_allow_wait_for_legacy_web_view_api.h',
         'browser/scoped_app_gl_state_restore.cc',
         'browser/scoped_app_gl_state_restore.h',
-        'browser/shared_renderer_state.cc',
-        'browser/shared_renderer_state.h',
         'common/android_webview_message_generator.cc',
         'common/android_webview_message_generator.h',
         'common/aw_content_client.cc',