Disable Android virtual keyboard when in VR shell

chrome/browser/android/vr_shell/vr_shell.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/vr_shell/vr_shell.h"
 
 #include <android/native_window_jni.h>
 
 #include "base/metrics/histogram_macros.h"
 #include "base/threading/platform_thread.h"
@@ skipping 131 matching lines @@
   gl_thread_->StartWithOptions(options);
 
   if (for_web_vr)
     metrics_helper_->SetWebVREnabled(true);
   html_interface_.reset(new UiInterface(
       for_web_vr ? UiInterface::Mode::WEB_VR : UiInterface::Mode::STANDARD,
       main_contents_->IsFullscreen()));
   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) {
   delete this;
 }
 
 void VrShell::LoadUIContent(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   GURL url(kVrShellUIURL);
   ui_contents_->GetController().LoadURL(
       url, content::Referrer(),
@@ skipping 39 matching lines @@
                                              thread->GetVrShellGl()));
 }
 
 void VrShell::OnPause(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   GLThread* thread = static_cast<GLThread*>(gl_thread_.get());
   thread->task_runner()->PostTask(
       FROM_HERE, base::Bind(&VrShellGl::OnPause, thread->GetVrShellGl()));
 
   // exit vr session
   metrics_helper_->SetVRActive(false);
-  SetShowingOverscrollGlow(true);
+  SetIsInVR(false);
 }
 
 void VrShell::OnResume(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   GLThread* thread = static_cast<GLThread*>(gl_thread_.get());
   thread->task_runner()->PostTask(
       FROM_HERE, base::Bind(&VrShellGl::OnResume, thread->GetVrShellGl()));
 
   // 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,
                          const JavaParamRef<jobject>& obj,
                          const JavaParamRef<jobject>& surface) {
   CHECK(!reprojected_rendering_);
   GLThread* thread = static_cast<GLThread*>(gl_thread_.get());
   gfx::AcceleratedWidget window =
       ANativeWindow_fromSurface(base::android::AttachCurrentThread(), surface);
   PostToGlThreadWhenReady(base::Bind(&VrShellGl::InitializeGl,
                                      thread->GetVrShellGl(),
                                      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(
     const content::WebContents* web_contents) {
   // Ensure that the WebContents requesting the VrShell instance is the one
   // we created.
   if (g_instance != nullptr && g_instance->ui_contents_ == web_contents)
     return g_instance->weak_ptr_factory_.GetWeakPtr();
   return base::WeakPtr<VrShell>(nullptr);
 }
@@ skipping 234 matching lines @@
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, content::WebContents::FromJavaWebContents(content_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(content_window_android),
       content::WebContents::FromJavaWebContents(ui_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(ui_window_android),
       for_web_vr, VrShellDelegate::GetNativeDelegate(env, delegate),
       reinterpret_cast<gvr_context*>(gvr_api), reprojected_rendering));
 }
 
 }  // namespace vr_shell