Remove ContextProvider::IsContextLost.

android_webview/browser/aw_render_thread_context_provider.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 "android_webview/browser/aw_render_thread_context_provider.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 139 matching lines @@
 }
 
 void AwRenderThreadContextProvider::SetupLock() {
   context_->SetLock(&context_lock_);
 }
 
 base::Lock* AwRenderThreadContextProvider::GetLock() {
   return &context_lock_;
 }
 
-bool AwRenderThreadContextProvider::IsContextLost() {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-
-  return destroyed_;
-}
-
 void AwRenderThreadContextProvider::VerifyContexts() {
 }
 
 void AwRenderThreadContextProvider::DeleteCachedResources() {
   DCHECK(main_thread_checker_.CalledOnValidThread());
 
   if (gr_context_) {
     TRACE_EVENT_INSTANT0("gpu", "GrContext::freeGpuResources",
                          TRACE_EVENT_SCOPE_THREAD);
     gr_context_->freeGpuResources();
@@ skipping 23 matching lines @@
     return;
   destroyed_ = true;
 
   if (!lost_context_callback_.is_null())
     base::ResetAndReturn(&lost_context_callback_).Run();
   if (gr_context_)
     gr_context_->abandonContext();
 }
 
 }  // namespace android_webview