The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a

commit 826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a
Author: Ian Vollick <vollick@chromium.org>
Date: Mon Nov 13 19:53:57 2017

[vr] Move renderers into separate files

Previously, we'd housed all our renderers in VrShellRenderer, but this
file has grown. In this change, the generic renderers (quad renderers,
mostly) have been moved to their own files. Element-specific renderers
have been moved into the files corresponding to said elements.

Since the WebVR content is not yet represented as an element and is
drawn explicitly by VrShellGl, it has a first-class renderer in the
renderers/ directory, but this should be a temporary state of affairs.

Bug:  784369 
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I6c27328b020e741fd275726b6e9cb51baddc0ff3
Reviewed-on: https://chromium-review.googlesource.com/766267
Commit-Queue: Ian Vollick <vollick@chromium.org>
Reviewed-by: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516014}
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/android/vr_shell/vr_shell_gl.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/BUILD.gn
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/controller.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/controller.h
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/grid.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/grid.h
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/laser.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/laser.h
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/reticle.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/elements/reticle.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/base_quad_renderer.cc
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/base_quad_renderer.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/base_renderer.cc
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/base_renderer.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/external_textured_quad_renderer.cc
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/external_textured_quad_renderer.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/gradient_quad_renderer.cc
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/gradient_quad_renderer.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/textured_quad_renderer.cc
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/textured_quad_renderer.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/web_vr_renderer.cc
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/renderers/web_vr_renderer.h
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/test/fake_ui_element_renderer.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/testapp/vr_test_context.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/ui.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/ui.h
[add] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/ui_element_renderer.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/ui_element_renderer.h
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/ui_renderer.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/ui_renderer.h
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/vr_gl_util.cc
[modify] https://crrev.com/826f56b0b5ce06470fd16b9dec5f14ff9fcc5d7a/chrome/browser/vr/vr_gl_util.h
[delete] https://crrev.com/d558791a8b5ee5733fed74e81133b8eb3f6f5308/chrome/browser/vr/vr_shell_renderer.cc
[delete] https://crrev.com/d558791a8b5ee5733fed74e81133b8eb3f6f5308/chrome/browser/vr/vr_shell_renderer.h

Marking this fixed since much of the work has been finished. We can create separate bugs (such as the blocking issue) for particular bits of UI that should be broken apart.