The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f4e57485631dc4c3beaa87de398975cab87fdc32

commit f4e57485631dc4c3beaa87de398975cab87fdc32
Author: boliu <boliu@chromium.org>
Date: Tue Mar 22 19:33:17 2016

sync compositor: Add output_surface_id plumbing

The output_surface_id is unique for a particular renderer compositor
instance. It is used to avoid returning resources from lost context to
compositor with new context.

Plumb output_surface_id from SynchronousOutputSurface all the way
to android_webview::HardwareRenderer. To avoid having to send down
a map<id, resource list>, a simpler guarantee is to assume the
output_surface_id is increasing, so only need to return resources
of with highest output surface id and drop resources other resources.

BUG= 592744 

Review URL: https://codereview.chromium.org/1769913003

Cr-Commit-Position: refs/heads/master@{#382636}

[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/browser_view_renderer.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/browser_view_renderer_unittest.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/child_frame.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/child_frame.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/hardware_renderer.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/hardware_renderer.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/shared_renderer_state.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/shared_renderer_state.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/test/rendering_test.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/android_webview/browser/test/rendering_test.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/browser/android/in_process/synchronous_compositor_factory_impl.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/browser/android/in_process/synchronous_compositor_factory_impl.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/browser/android/in_process/synchronous_compositor_impl.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/browser/android/in_process/synchronous_compositor_impl.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/browser/android/synchronous_compositor_host.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/browser/android/synchronous_compositor_host.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/common/android/sync_compositor_messages.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/common/android/sync_compositor_messages.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/content_browser.gypi
[add] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/public/browser/android/synchronous_compositor.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/public/browser/android/synchronous_compositor.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/public/test/test_synchronous_compositor_android.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/public/test/test_synchronous_compositor_android.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/renderer/android/synchronous_compositor_factory.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/renderer/android/synchronous_compositor_output_surface.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/renderer/android/synchronous_compositor_output_surface.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/renderer/android/synchronous_compositor_proxy.cc
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/renderer/android/synchronous_compositor_proxy.h
[modify] https://crrev.com/f4e57485631dc4c3beaa87de398975cab87fdc32/content/renderer/render_widget.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7c1bd415bfbed8d80249a4e25788fbe967c97699

commit 7c1bd415bfbed8d80249a4e25788fbe967c97699
Author: boliu <boliu@chromium.org>
Date: Wed Mar 23 23:50:10 2016

sync compositor: Handle context loss

OutputSurface becomes a mutable part of SynchronousCompositorProxy.
Proxy needes to make sure access to OutputSurface are null checked. And
the Registry (ie SynchronousCompositorFilter) need to treat the
OutputSurface part as an optional part of Proxy init.

BUG= 592744 

Review URL: https://codereview.chromium.org/1773873002

Cr-Commit-Position: refs/heads/master@{#382978}

[modify] https://crrev.com/7c1bd415bfbed8d80249a4e25788fbe967c97699/content/renderer/android/synchronous_compositor_filter.cc
[modify] https://crrev.com/7c1bd415bfbed8d80249a4e25788fbe967c97699/content/renderer/android/synchronous_compositor_output_surface.cc
[modify] https://crrev.com/7c1bd415bfbed8d80249a4e25788fbe967c97699/content/renderer/android/synchronous_compositor_output_surface.h
[modify] https://crrev.com/7c1bd415bfbed8d80249a4e25788fbe967c97699/content/renderer/android/synchronous_compositor_proxy.cc
[modify] https://crrev.com/7c1bd415bfbed8d80249a4e25788fbe967c97699/content/renderer/android/synchronous_compositor_proxy.h

 Issue 617165  has been merged into this issue.