Add flag to communicate last casted app to renderer process

chromecast/renderer/cast_content_renderer_client.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 "chromecast/renderer/cast_content_renderer_client.h"
 
 #include <sys/sysinfo.h>
 
 #include "base/command_line.h"
 #include "base/memory/memory_pressure_listener.h"
 #include "chromecast/common/chromecast_switches.h"
+#include "chromecast/crash/cast_crash_keys.h"
 #include "chromecast/renderer/cast_media_load_deferrer.h"
 #include "chromecast/renderer/cast_render_process_observer.h"
 #include "chromecast/renderer/key_systems_cast.h"
 #include "chromecast/renderer/media/cma_media_renderer_factory.h"
 #include "components/network_hints/renderer/prescient_networking_dispatcher.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/render_view_observer.h"
 #include "crypto/nss_util.h"
@@ skipping 62 matching lines @@
 
 }  // namespace
 
 CastContentRendererClient::CastContentRendererClient() {
 }
 
 CastContentRendererClient::~CastContentRendererClient() {
 }
 
 void CastContentRendererClient::RenderThreadStarted() {
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 #if defined(USE_NSS)
   // Note: Copied from chrome_render_process_observer.cc to fix b/8676652.
   //
   // On platforms where the system NSS shared libraries are used,
   // initialize NSS now because it won't be able to load the .so's
   // after entering the sandbox.
-  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (!command_line->HasSwitch(switches::kSingleProcess))
     crypto::InitNSSSafely();
 #endif
 
 #if defined(ARCH_CPU_ARM_FAMILY) && !defined(OS_ANDROID)
   PlatformPollFreemem();
 #endif
 
   cast_observer_.reset(
       new CastRenderProcessObserver(PlatformGetRendererMessageFilters()));
 
   prescient_networking_dispatcher_.reset(
       new network_hints::PrescientNetworkingDispatcher());
+
+  std::string last_launched_app =
+      command_line->GetSwitchValueNative(switches::kLastLaunchedApp);
+  if (!last_launched_app.empty())
+    base::debug::SetCrashKeyValue(crash_keys::kLastApp, last_launched_app);

[gunsch, 2015/02/24 00:54:43]

do we also want to set the kCurrentApp crash key here, or just leave it empty on
the renderer?

[byungchul, 2015/02/24 01:04:12]

Either way fine to me.

+
+  std::string previous_app =
+      command_line->GetSwitchValueNative(switches::kPreviousApp);
+  if (!previous_app.empty())
+    base::debug::SetCrashKeyValue(crash_keys::kPreviousApp, previous_app);
 }
 
 void CastContentRendererClient::RenderViewCreated(
     content::RenderView* render_view) {
   blink::WebView* webview = render_view->GetWebView();
   if (webview) {
     webview->setBaseBackgroundColor(kColorBlack);
 
     // The following settings express consistent behaviors across Cast
     // embedders, though Android has enabled by default for mobile browsers.
@@ skipping 42 matching lines @@
     closure.Run();
     return;
   }
 
   // Lifetime is tied to |render_frame| via content::RenderFrameObserver.
   new CastMediaLoadDeferrer(render_frame, closure);
 }
 
 }  // namespace shell
 }  // namespace chromecast