Decouple VR Shell DPR and CSS size from Physical Displays.

chrome/browser/android/vr_shell/vr_compositor.cc

Index: chrome/browser/android/vr_shell/vr_compositor.cc
diff --git a/chrome/browser/android/vr_shell/vr_compositor.cc b/chrome/browser/android/vr_shell/vr_compositor.cc
index 2c69483e9a6c7d6f06b068d49ec40f614f4d094f..a300f643614c3f3277113491b2da4b8a1df36d66 100644
--- a/chrome/browser/android/vr_shell/vr_compositor.cc
+++ b/chrome/browser/android/vr_shell/vr_compositor.cc
@@ -10,6 +10,8 @@
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/android/window_android.h"
 
+using base::android::JavaParamRef;
+
 namespace vr_shell {
 
 VrCompositor::VrCompositor(ui::WindowAndroid* window, bool transparent)
@@ -35,6 +37,7 @@ void VrCompositor::OnSwapBuffersCompleted(int pending_swap_buffers) {}
 void VrCompositor::SetLayer(content::WebContents* web_contents) {
   assert(layer_ == nullptr);
   ui::ViewAndroid* view_android = web_contents->GetNativeView();
+
   // When we pass the layer for the ContentViewCore to the compositor it may be
   // removing it from its previous parent, so we remember that and restore it to
   // its previous parent on teardown.
@@ -53,13 +56,13 @@ void VrCompositor::SurfaceDestroyed() {
   compositor_->SetSurface(nullptr);
 }
 
-void VrCompositor::SurfaceChanged(
-    int width,
-    int height,
-    const base::android::JavaParamRef<jobject>& surface) {
+void VrCompositor::SetWindowBounds(int width, int height) {
+  compositor_->SetWindowBounds(gfx::Size(width, height));
+}
+
+void VrCompositor::SurfaceChanged(const JavaParamRef<jobject>& surface) {
   DCHECK(surface);
   compositor_->SetSurface(surface);
-  compositor_->SetWindowBounds(gfx::Size(width, height));
 }
 
 }  // namespace vr_shell