Moved the TraceUploader to chrome/ and abstracted it for alternative new upload destinations.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index d0e4937aa71d9413cb32cadcde046228602b7a59..d399abad9bb90d9faaadf8d8ea5872d00c3c7893 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -73,6 +73,7 @@
 #include "chrome/browser/ssl/ssl_error_handler.h"
 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
 #include "chrome/browser/tab_contents/tab_util.h"
+#include "chrome/browser/tracing/chrome_tracing_delegate.h"
 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
 #include "chrome/browser/ui/chrome_select_file_policy.h"
@@ -2555,6 +2556,14 @@ ChromeContentBrowserClient::GetDevToolsManagerDelegate() {
 #endif
 }
 
+content::TracingDelegate* ChromeContentBrowserClient::GetTracingDelegate() {
+#if !defined(OS_ANDROID)
+  return new ChromeTracingDelegate();
+#else
+  return nullptr;
+#endif
+}
+
 bool ChromeContentBrowserClient::IsPluginAllowedToCallRequestOSFileHandle(
     content::BrowserContext* browser_context,
     const GURL& url) {