favor DCHECK_CURRENTLY_ON for better logs in content/browser/[f-p]*

content/browser/plugin_service_impl_browsertest.cc

Index: content/browser/plugin_service_impl_browsertest.cc
diff --git a/content/browser/plugin_service_impl_browsertest.cc b/content/browser/plugin_service_impl_browsertest.cc
index 710840e39b0fe9ecaeca30ed7d8b4b7a0f0effb7..b81b78cf08cfc4fb0b1cf9fd2144d0c971b38c32 100644
--- a/content/browser/plugin_service_impl_browsertest.cc
+++ b/content/browser/plugin_service_impl_browsertest.cc
@@ -24,7 +24,7 @@ namespace content {
 const char kNPAPITestPluginMimeType[] = "application/vnd.npapi-test";
 
 void OpenChannel(PluginProcessHost::Client* client) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   // Start opening the channel
   PluginServiceImpl::GetInstance()->OpenChannelToNpapiPlugin(
       0, 0, GURL(), GURL(), kNPAPITestPluginMimeType, client);
@@ -250,13 +250,13 @@ class MockCanceledBeforeSentPluginProcessHostClient
 
   // Client implementation.
   void SetPluginInfo(const WebPluginInfo& info) override {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
     ASSERT_TRUE(info.mime_types.size());
     ASSERT_EQ(kNPAPITestPluginMimeType, info.mime_types[0].mime_type);
     set_plugin_info_called_ = true;
   }
   void OnFoundPluginProcessHost(PluginProcessHost* host) override {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
     set_on_found_plugin_process_host_called();
     set_host(host);
     // This gets called right before we request the plugin<=>renderer channel,
@@ -327,7 +327,7 @@ class MockCanceledAfterSentPluginProcessHostClient
 
   // We override this guy again since we don't want to cancel yet.
   void OnFoundPluginProcessHost(PluginProcessHost* host) override {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
     set_on_found_plugin_process_host_called();
     set_host(host);
   }