Log a non-crash dump for 10% of Spitzer pipeline decode failures.

media/blink/webmediaplayer_impl.cc

 // Copyright 2013 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/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
 #include "base/debug/crash_logging.h"
+#include "base/debug/dump_without_crashing.h"
 #include "base/metrics/histogram.h"
+#include "base/rand_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/task_runner_util.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/layers/video_layer.h"
 #include "gpu/blink/webgraphicscontext3d_impl.h"
 #include "media/audio/null_audio_sink.h"
@@ skipping 872 matching lines @@
 }
 
 void WebMediaPlayerImpl::OnPipelineError(PipelineStatus error) {
   DVLOG(1) << __FUNCTION__;
   DCHECK(main_task_runner_->BelongsToCurrentThread());
   DCHECK_NE(error, PIPELINE_OK);
 
   if (suppress_destruction_errors_)
     return;
 
+#if defined(OS_ANDROID)
+  // For 10% of pipeline decode failures log the playback URL. The URL is set
+  // as the crash-key 'subresource_url' during DoLoad().
+  //
+  // TODO(dalecurtis): This is temporary to track down higher than average
+  // decode failure rates for video-only content. See http://crbug.com/595076.
+  if (base::RandDouble() <= 0.1 && error == PIPELINE_ERROR_DECODE)
+    base::debug::DumpWithoutCrashing();
+#endif
+
   media_log_->AddEvent(media_log_->CreatePipelineErrorEvent(error));
 
   if (ready_state_ == WebMediaPlayer::ReadyStateHaveNothing) {
     // Any error that occurs before reaching ReadyStateHaveMetadata should
     // be considered a format error.
     SetNetworkState(WebMediaPlayer::NetworkStateFormatError);
     return;
   }
 
   SetNetworkState(PipelineErrorToNetworkState(error));
@@ skipping 541 matching lines @@
 bool WebMediaPlayerImpl::IsAutomaticResumeAllowed() {
 #if defined(OS_ANDROID)
   return !hasVideo() || (delegate_ && !delegate_->IsHidden());
 #else
   // On non-Android platforms Resume() is always allowed.
   return true;
 #endif
 }
 
 }  // namespace media