Distinguish in the browser between renderer crashes and kills

android_webview/lib/main/aw_main_delegate.cc

 // Copyright (c) 2012 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/lib/main/aw_main_delegate.h"
 
 #include "android_webview/browser/aw_content_browser_client.h"
 #include "android_webview/browser/browser_view_renderer.h"
 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
 #include "android_webview/common/aw_descriptors.h"
@@ skipping 123 matching lines @@
     // here when those files have arch specific names http://crbug.com/455699
     CHECK(base::android::RegisterApkAssetWithGlobalDescriptors(
         kV8NativesDataDescriptor, kNativesFileName));
     CHECK(base::android::RegisterApkAssetWithGlobalDescriptors(
         kV8SnapshotDataDescriptor, kSnapshotFileName));
   }
 
   if (cl->HasSwitch(switches::kWebViewSandboxedRenderer)) {
     cl->AppendSwitch(switches::kInProcessGPU);
     cl->AppendSwitchASCII(switches::kRendererProcessLimit, "1");
+    cl->AppendSwitch(switches::kDisableRendererBackgrounding);
   }
 
   return false;
 }
 
 void AwMainDelegate::PreSandboxStartup() {
 #if defined(ARCH_CPU_ARM_FAMILY)
   // Create an instance of the CPU class to parse /proc/cpuinfo and cache
   // cpu_brand info.
   base::CPU cpu_info;
 #endif
 
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   std::string process_type =
       command_line.GetSwitchValueASCII(switches::kProcessType);
+  int crash_signal_fd = -1;
   if (process_type == switches::kRendererProcess) {
     auto global_descriptors = base::GlobalDescriptors::GetInstance();
     int pak_fd = global_descriptors->Get(kAndroidWebViewLocalePakDescriptor);
     base::MemoryMappedFile::Region pak_region =
         global_descriptors->GetRegion(kAndroidWebViewLocalePakDescriptor);
     ResourceBundle::InitSharedInstanceWithPakFileRegion(base::File(pak_fd),
                                                         pak_region);
     pak_fd = global_descriptors->Get(kAndroidWebViewMainPakDescriptor);
     pak_region =
         global_descriptors->GetRegion(kAndroidWebViewMainPakDescriptor);
     ResourceBundle::GetSharedInstance().AddDataPackFromFileRegion(
         base::File(pak_fd), pak_region, ui::SCALE_FACTOR_NONE);
+    crash_signal_fd =
+        global_descriptors->Get(kAndroidWebViewCrashSignalDescriptor);
   }
   if (process_type.empty() &&
       command_line.HasSwitch(switches::kSingleProcess)) {
     // "webview" has a special treatment in breakpad_linux.cc.
     process_type = "webview";
   }
 
-  crash_reporter::EnableMicrodumpCrashReporter(process_type);
+  crash_reporter::EnableMicrodumpCrashReporter(process_type, crash_signal_fd);
 }
 
 int AwMainDelegate::RunProcess(
     const std::string& process_type,
     const content::MainFunctionParams& main_function_params) {
   if (process_type.empty()) {
     AwBrowserDependencyFactoryImpl::InstallInstance();
 
     browser_runner_.reset(content::BrowserMainRunner::Create());
     int exit_code = browser_runner_->Initialize(main_function_params);
@@ skipping 59 matching lines @@
 #if defined(VIDEO_HOLE)
 content::ExternalVideoSurfaceContainer*
 AwMainDelegate::CreateExternalVideoSurfaceContainer(
     content::WebContents* web_contents) {
   return external_video_surface::ExternalVideoSurfaceContainerImpl::Create(
       web_contents);
 }
 #endif
 
 }  // namespace android_webview