Move synchronous compositor into content/browser

content/content_browser.gypi

Index: content/content_browser.gypi
diff --git a/content/content_browser.gypi b/content/content_browser.gypi
index bcd702b0185fffbe3364bb3dc88204e365434bbd..8a3fd26ee9347f5fc5e20e88851ed917d94a0ea5 100644
--- a/content/content_browser.gypi
+++ b/content/content_browser.gypi
@@ -33,6 +33,8 @@
     'public/browser/android/content_view_layer_renderer.h',
     'public/browser/android/devtools_auth.h',
     'public/browser/android/download_controller_android.h',
+    'public/browser/android/synchronous_compositor_client.h',
+    'public/browser/android/synchronous_compositor.h',
     'public/browser/browser_accessibility_state.h',
     'public/browser/browser_child_process_host.h',
     'public/browser/browser_child_process_host_delegate.cc',
@@ -244,6 +246,10 @@
     'browser/android/devtools_auth.cc',
     'browser/android/edge_effect.h',
     'browser/android/edge_effect.cc',
+    'browser/android/in_process/synchronous_compositor_impl.cc',
+    'browser/android/in_process/synchronous_compositor_impl.h',
+    'browser/android/in_process/synchronous_compositor_output_surface.cc',
+    'browser/android/in_process/synchronous_compositor_output_surface.h',
     'browser/android/interstitial_page_delegate_android.cc',
     'browser/android/interstitial_page_delegate_android.h',
     'browser/android/load_url_params.cc',