blimp: Add logging for compositor and render widget feature.

blimp/client/app/blimp_startup.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 "blimp/client/app/blimp_startup.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 19 matching lines @@
 
 }  // namespace
 
 namespace blimp {
 namespace client {
 
 void InitializeLogging() {
   // TODO(haibinlu): Remove this before release.
   // Enables a few verbose log by default.
   if (!base::CommandLine::ForCurrentProcess()->HasSwitch("vmodule")) {
-    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
-        "vmodule", "blimp_message_pump=1, blimp_connection=1");
+    std::string log_filter =
+        std::string("blimp_message_pump=1, blimp_connection=1,") +
+        std::string("blimp_compositor=1, blimp_compositor_manager=1,") +
+        std::string("remote_channel_impl=1");
+    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII("vmodule",
+                                                              log_filter);
   }
 
   logging::LoggingSettings settings;
 #if defined(OS_ANDROID)
   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
 #else
   base::FilePath log_filename;
   PathService::Get(base::DIR_EXE, &log_filename);
   log_filename = log_filename.AppendASCII("blimp_client.log");
   settings.logging_dest = logging::LOG_TO_ALL;
@@ skipping 18 matching lines @@
   if (!gfx::GLSurface::InitializeOneOff())
     return false;
   SkGraphics::Init();
   SkGraphics::SetImageGeneratorFromEncodedFactory(CreateImageGenerator);
   g_main_message_loop.Get().reset(new base::MessageLoopForUI);
   return true;
 }
 
 }  // namespace client
 }  // namespace blimp