[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 fde14f55f5f8acd9c3dfc80d143bffc430e0e160..e73c3d0047860c7ecf8d9b116b9b3e15ae2acebc 100644
--- a/chrome/browser/devtools/device/devtools_android_bridge.h
+++ b/chrome/browser/devtools/device/devtools_android_bridge.h
@@ -222,6 +222,10 @@ class DevToolsAndroidBridge : public KeyedService {
   scoped_refptr<content::DevToolsAgentHost> GetBrowserAgentHost(
       scoped_refptr<RemoteBrowser> browser);
 
+  void SendJsonRequest(const scoped_refptr<RemoteBrowser>& browser,
+                       const std::string& url,
+                       const JsonRequestCallback& callback);
+
  private:
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::UI>;