Remove some unneeded media.AVDA histograms.

media/gpu/avda_picture_buffer_manager.cc

 // Copyright 2015 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 "media/gpu/avda_picture_buffer_manager.h"
 
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
 
 #include "base/android/build_info.h"
@@ skipping 118 matching lines @@
     : state_provider_(nullptr), media_codec_(nullptr) {}
 
 AVDAPictureBufferManager::~AVDAPictureBufferManager() {}
 
 gl::ScopedJavaSurface AVDAPictureBufferManager::Initialize(
     AVDAStateProvider* state_provider,
     int surface_view_id) {
   state_provider_ = state_provider;
   shared_state_ = new AVDASharedState();
 
-  bool using_virtual_context = false;
-  if (gl::GLContext* context = gl::GLContext::GetCurrent()) {
-    if (gl::GLShareGroup* share_group = context->share_group())
-      using_virtual_context =
-          !!share_group->GetSharedContext(gl::GLSurface::GetCurrent());
-  }
-  UMA_HISTOGRAM_BOOLEAN("Media.AVDA.VirtualContext", using_virtual_context);
-
   // Acquire the SurfaceView surface if given a valid id.
   if (surface_view_id != VideoDecodeAccelerator::Config::kNoSurfaceID) {
     return gpu::GpuSurfaceLookup::GetInstance()->AcquireJavaSurface(
         surface_view_id);
   }
 
   // Otherwise create a SurfaceTexture.
   GLuint service_id = 0;
   surface_texture_ = CreateAttachedSurfaceTexture(
       state_provider_->GetGlDecoder(), &service_id);
@@ skipping 244 matching lines @@
   shared_state_->CodecChanged(codec);
 }
 
 bool AVDAPictureBufferManager::ArePicturesOverlayable() {
   // SurfaceView frames are always overlayable because that's the only way to
   // display them.
   return !surface_texture_;
 }
 
 }  // namespace media