Disable Android virtual keyboard when in VR shell

chrome/browser/android/vr_shell/vr_shell.cc

Index: chrome/browser/android/vr_shell/vr_shell.cc
diff --git a/chrome/browser/android/vr_shell/vr_shell.cc b/chrome/browser/android/vr_shell/vr_shell.cc
index b1fe6a972ce10b6ccc885b556a1f2c98ab746918..551cd649fc14d4aea0fb8e9ef1b33a610c6ac1fa 100644
--- a/chrome/browser/android/vr_shell/vr_shell.cc
+++ b/chrome/browser/android/vr_shell/vr_shell.cc
@@ -149,7 +149,7 @@ VrShell::VrShell(JNIEnv* env,
   vr_web_contents_observer_.reset(new VrWebContentsObserver(
       main_contents, html_interface_.get(), this));
 
-  SetShowingOverscrollGlow(false);
+  SetIsInVR(true);
 }
 
 void VrShell::Destroy(JNIEnv* env, const JavaParamRef<jobject>& obj) {
@@ -209,7 +209,7 @@ void VrShell::OnPause(JNIEnv* env, const JavaParamRef<jobject>& obj) {
 
   // exit vr session
   metrics_helper_->SetVRActive(false);
-  SetShowingOverscrollGlow(true);
+  SetIsInVR(false);
 }
 
 void VrShell::OnResume(JNIEnv* env, const JavaParamRef<jobject>& obj) {
@@ -219,7 +219,7 @@ void VrShell::OnResume(JNIEnv* env, const JavaParamRef<jobject>& obj) {
 
   // exit vr session

[bshe, 2017/01/17 12:26:15]

nit: not related to your change, but do you mind remove the comment above as a
minor clean up. 

   metrics_helper_->SetVRActive(true);
-  SetShowingOverscrollGlow(false);
+  SetIsInVR(true);
 }
 
 void VrShell::SetSurface(JNIEnv* env,
@@ -234,9 +234,8 @@ void VrShell::SetSurface(JNIEnv* env,
                                      base::Unretained(window)));
 }
 
-void VrShell::SetShowingOverscrollGlow(bool showing_glow) {
-  main_contents_->GetRenderWidgetHostView()->SetShowingOverscrollGlow(
-      showing_glow);
+void VrShell::SetIsInVR(bool is_in_vr) {
+  main_contents_->GetRenderWidgetHostView()->SetIsInVR(is_in_vr);
 }
 
 base::WeakPtr<VrShell> VrShell::GetWeakPtr(