headless: Introduce a browser context

headless/lib/browser/headless_browser_main_parts.cc

Index: headless/lib/browser/headless_browser_main_parts.cc
diff --git a/headless/lib/browser/headless_browser_main_parts.cc b/headless/lib/browser/headless_browser_main_parts.cc
index 9781e39905ca1d08b9ffda56a3981dde5e7c2cc6..8a92222bc3df318873f6bf45a8fe26a5136ab691 100644
--- a/headless/lib/browser/headless_browser_main_parts.cc
+++ b/headless/lib/browser/headless_browser_main_parts.cc
@@ -5,7 +5,7 @@
 #include "headless/lib/browser/headless_browser_main_parts.h"
 
 #include "components/devtools_http_handler/devtools_http_handler.h"
-#include "headless/lib/browser/headless_browser_context.h"
+#include "headless/lib/browser/headless_browser_context_impl.h"
 #include "headless/lib/browser/headless_browser_impl.h"
 #include "headless/lib/browser/headless_devtools.h"
 #include "headless/lib/browser/headless_screen.h"
@@ -32,7 +32,7 @@ HeadlessBrowserMainParts::HeadlessBrowserMainParts(HeadlessBrowserImpl* browser)
 HeadlessBrowserMainParts::~HeadlessBrowserMainParts() {}
 
 void HeadlessBrowserMainParts::PreMainMessageLoopRun() {
-  browser_context_.reset(new HeadlessBrowserContext(browser_->options()));
+  browser_context_.reset(new HeadlessBrowserContextImpl(browser_->options()));
   if (browser_->options()->devtools_endpoint.address().IsValid()) {
     devtools_http_handler_ =
         CreateLocalDevToolsHttpHandler(browser_context_.get());
@@ -46,7 +46,8 @@ void HeadlessBrowserMainParts::PostMainMessageLoopRun() {
   PlatformExit();
 }
 
-HeadlessBrowserContext* HeadlessBrowserMainParts::browser_context() const {
+HeadlessBrowserContextImpl* HeadlessBrowserMainParts::default_browser_context()
+    const {
   return browser_context_.get();
 }