[DevTools] Filter any messages from previous sessions in DevToolsAgentHostImpl

content/browser/devtools/protocol/system_info_handler.cc

Index: content/browser/devtools/protocol/system_info_handler.cc
diff --git a/content/browser/devtools/protocol/system_info_handler.cc b/content/browser/devtools/protocol/system_info_handler.cc
index aa32e58e928bbdda9c41784b205fd85d1de06189..c5080a0b9d50d52e90105097d249b6132894481d 100644
--- a/content/browser/devtools/protocol/system_info_handler.cc
+++ b/content/browser/devtools/protocol/system_info_handler.cc
@@ -93,8 +93,7 @@ class SystemInfoHandlerGpuObserver : public content::GpuDataManagerObserver {
                                DevToolsCommandId command_id)
       : handler_(handler),
         command_id_(command_id),
-        observer_id_(++next_observer_id_)
-  {
+        observer_id_(++next_observer_id_) {
     if (handler_) {
       handler_->AddActiveObserverId(observer_id_);
     }
@@ -154,12 +153,9 @@ Response SystemInfoHandler::GetInfo(DevToolsCommandId command_id) {
     // Waiting for complete GPU info in the if-test above seems to
     // frequently hit internal timeouts in the launching of the unsandboxed
     // GPU process in debug builds on Windows.
-    BrowserThread::PostTask(
-        BrowserThread::UI,
-        FROM_HERE,
-        base::Bind(&SystemInfoHandler::SendGetInfoResponse,
-                   weak_factory_.GetWeakPtr(),
-                   command_id));
+    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+                            base::Bind(&SystemInfoHandler::SendGetInfoResponse,
+                                       weak_factory_.GetWeakPtr(), command_id));
   } else {
     // We will be able to get more information from the GpuDataManager.
     // Register a transient observer with it to call us back when the
@@ -167,11 +163,9 @@ Response SystemInfoHandler::GetInfo(DevToolsCommandId command_id) {
     SystemInfoHandlerGpuObserver* observer = new SystemInfoHandlerGpuObserver(
         weak_factory_.GetWeakPtr(), command_id);
     BrowserThread::PostDelayedTask(
-        BrowserThread::UI,
-        FROM_HERE,
+        BrowserThread::UI, FROM_HERE,
         base::Bind(&SystemInfoHandler::ObserverWatchdogCallback,
-                   weak_factory_.GetWeakPtr(),
-                   observer->GetObserverId(),
+                   weak_factory_.GetWeakPtr(), observer->GetObserverId(),
                    command_id),
         base::TimeDelta::FromMilliseconds(kGPUInfoWatchdogTimeoutMs));
     GpuDataManager::GetInstance()->AddObserver(observer);
@@ -200,10 +194,10 @@ void SystemInfoHandler::SendGetInfoResponse(DevToolsCommandId command_id) {
       ->set_driver_bug_workarounds(GetDriverBugWorkarounds());
 
   client_->SendGetInfoResponse(
-      command_id,
-      GetInfoResponse::Create()->set_gpu(gpu)
-      ->set_model_name(gpu_info.machine_model_name)
-      ->set_model_version(gpu_info.machine_model_version));
+      command_id, GetInfoResponse::Create()
+                      ->set_gpu(gpu)
+                      ->set_model_name(gpu_info.machine_model_name)
+                      ->set_model_version(gpu_info.machine_model_version));
 }
 
 void SystemInfoHandler::AddActiveObserverId(int observer_id) {