Remove obsolete SharedTimer code in chromium

components/html_viewer/blink_platform_impl.cc

 // Copyright 2014 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 "components/html_viewer/blink_platform_impl.h"
 
 #include <cmath>
 
 #include "base/command_line.h"
 #include "base/rand_util.h"
@@ skipping 44 matching lines @@
   scoped_ptr<base::WaitableEvent> impl_;
   DISALLOW_COPY_AND_ASSIGN(WebWaitableEventImpl);
 };
 
 }  // namespace
 
 BlinkPlatformImpl::BlinkPlatformImpl(
     mojo::ApplicationImpl* app,
     scheduler::RendererScheduler* renderer_scheduler)
     : main_thread_task_runner_(renderer_scheduler->DefaultTaskRunner()),
-      main_thread_(
-          new scheduler::WebThreadImplForRendererScheduler(renderer_scheduler)),
-      shared_timer_func_(NULL),
-      shared_timer_fire_time_(0.0),
-      shared_timer_fire_time_was_set_while_suspended_(false),
-      shared_timer_suspended_(0) {
+      main_thread_(new scheduler::WebThreadImplForRendererScheduler(
+          renderer_scheduler)) {
   if (app) {
     mojo::URLRequestPtr request(mojo::URLRequest::New());
     request->url = mojo::String::From("mojo:network_service");
     mojo::ApplicationConnection* connection =
         app->ConnectToApplication(request.Pass());
     connection->ConnectToService(&network_service_);
     connection->ConnectToService(&url_loader_factory_);
 
     mojo::CookieStorePtr cookie_store;
     network_service_->GetCookieStore(GetProxy(&cookie_store));
     cookie_jar_.reset(new WebCookieJarImpl(cookie_store.Pass()));
 
     mojo::ClipboardPtr clipboard;
     mojo::URLRequestPtr request2(mojo::URLRequest::New());
     request2->url = mojo::String::From("mojo:clipboard");
     app->ConnectToService(request2.Pass(), &clipboard);
     clipboard_.reset(new WebClipboardImpl(clipboard.Pass()));
   }
-  shared_timer_.SetTaskRunner(main_thread_task_runner_);
 }
 
 BlinkPlatformImpl::~BlinkPlatformImpl() {
 }
 
 blink::WebCookieJar* BlinkPlatformImpl::cookieJar() {
   return cookie_jar_.get();
 }
 
 blink::WebClipboard* BlinkPlatformImpl::clipboard() {
@@ skipping 23 matching lines @@
 double BlinkPlatformImpl::monotonicallyIncreasingTime() {
   return base::TimeTicks::Now().ToInternalValue() /
       static_cast<double>(base::Time::kMicrosecondsPerSecond);
 }
 
 void BlinkPlatformImpl::cryptographicallyRandomValues(unsigned char* buffer,
                                                       size_t length) {
   base::RandBytes(buffer, length);
 }
 
-void BlinkPlatformImpl::setSharedTimerFiredFunction(void (*func)()) {
-  shared_timer_func_ = func;
-}
-
-void BlinkPlatformImpl::setSharedTimerFireInterval(
-    double interval_seconds) {
-  shared_timer_fire_time_ = interval_seconds + monotonicallyIncreasingTime();
-  if (shared_timer_suspended_) {
-    shared_timer_fire_time_was_set_while_suspended_ = true;
-    return;
-  }
-
-  // By converting between double and int64 representation, we run the risk
-  // of losing precision due to rounding errors. Performing computations in
-  // microseconds reduces this risk somewhat. But there still is the potential
-  // of us computing a fire time for the timer that is shorter than what we
-  // need.
-  // As the event loop will check event deadlines prior to actually firing
-  // them, there is a risk of needlessly rescheduling events and of
-  // needlessly looping if sleep times are too short even by small amounts.
-  // This results in measurable performance degradation unless we use ceil() to
-  // always round up the sleep times.
-  int64 interval = static_cast<int64>(
-      ceil(interval_seconds * base::Time::kMillisecondsPerSecond)
-      * base::Time::kMicrosecondsPerMillisecond);
-
-  if (interval < 0)
-    interval = 0;
-
-  shared_timer_.Stop();
-  shared_timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds(interval),
-                      this, &BlinkPlatformImpl::DoTimeout);
-}
-
-void BlinkPlatformImpl::stopSharedTimer() {
-  shared_timer_.Stop();
-}
-
 bool BlinkPlatformImpl::isThreadedCompositingEnabled() {
   return true;
 }
 
 blink::WebCompositorSupport* BlinkPlatformImpl::compositorSupport() {
   return &compositor_support_;
 }
 
 void BlinkPlatformImpl::createMessageChannel(
     blink::WebMessagePortChannel** channel1,
@@ skipping 128 matching lines @@
 BlinkPlatformImpl::notificationManager() {
   return &web_notification_manager_;
 }
 
 void BlinkPlatformImpl::UpdateWebThreadTLS(blink::WebThread* thread) {
   DCHECK(!current_thread_slot_.Get());
   current_thread_slot_.Set(thread);
 }
 
 }  // namespace html_viewer