[DevTools] Remote JSON requests from javascript (Chromium side)

chrome/browser/devtools/device/devtools_android_bridge.h

Index: chrome/browser/devtools/device/devtools_android_bridge.h
diff --git a/chrome/browser/devtools/device/devtools_android_bridge.h b/chrome/browser/devtools/device/devtools_android_bridge.h
index 3b1bb7f3d91f0bcbc75487607d26368983159f97..381984ec5193fe9f887d5a13339ff637ec61caee 100644
--- a/chrome/browser/devtools/device/devtools_android_bridge.h
+++ b/chrome/browser/devtools/device/devtools_android_bridge.h
@@ -223,6 +223,10 @@ class DevToolsAndroidBridge : public KeyedService {
   scoped_refptr<content::DevToolsAgentHost> GetBrowserAgentHost(
       scoped_refptr<RemoteBrowser> browser);
 
+  void SendJsonRequest(const std::string& browser_id_str,
+                       const std::string& url,
+                       const JsonRequestCallback& callback);
+
  private:
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::UI>;