Add missing android_webview .h files to .gn files

android_webview/BUILD.gn

Index: android_webview/BUILD.gn
diff --git a/android_webview/BUILD.gn b/android_webview/BUILD.gn
index 2cac47dd715fb99a012423e0ed028aaf53cf4a02..1807a899ac6df4b280ede8296c11a3adfcbfe7c2 100644
--- a/android_webview/BUILD.gn
+++ b/android_webview/BUILD.gn
@@ -429,6 +429,8 @@ source_set("common") {
     "browser/child_frame.h",
     "browser/command_line_helper.cc",
     "browser/command_line_helper.h",
+    "browser/compositor_frame_consumer.h",
+    "browser/compositor_frame_producer.h",
     "browser/compositor_id.cc",
     "browser/compositor_id.h",
     "browser/deferred_gpu_command_service.cc",
@@ -477,6 +479,7 @@ source_set("common") {
     "browser/parent_output_surface.h",
     "browser/render_thread_manager.cc",
     "browser/render_thread_manager.h",
+    "browser/render_thread_manager_client.h",
     "browser/renderer_host/auto_login_parser.cc",
     "browser/renderer_host/auto_login_parser.h",
     "browser/renderer_host/aw_render_view_host_ext.cc",
@@ -519,6 +522,7 @@ source_set("common") {
     "lib/main/webview_jni_onload.cc",
     "lib/main/webview_jni_onload.h",
     "public/browser/draw_gl.h",
+    "public/browser/draw_sw.h",
     "renderer/aw_content_renderer_client.cc",
     "renderer/aw_content_renderer_client.h",
     "renderer/aw_content_settings_client.cc",