DevTools: create test infrastructure so devtools drives the test

content/shell/browser/shell_devtools_bindings.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/browser/shell_devtools_bindings.h"
 
 #include <stddef.h>
 
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/json/string_escape.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_client.h"
 #include "content/shell/browser/shell.h"
 #include "content/shell/browser/shell_browser_context.h"
 #include "content/shell/browser/shell_browser_main_parts.h"
 #include "content/shell/browser/shell_content_browser_client.h"
 #include "content/shell/browser/shell_devtools_manager_delegate.h"
@@ skipping 93 matching lines @@
       inspect_element_at_y_(-1),
       weak_factory_(this) {}
 
 ShellDevToolsBindings::~ShellDevToolsBindings() {
   for (const auto& pair : pending_requests_)
     delete pair.first;
   if (agent_host_)
     agent_host_->DetachClient(this);
 }
 
-void ShellDevToolsBindings::RenderViewCreated(
-    RenderViewHost* render_view_host) {
-  CreateFrontendHost();
+void ShellDevToolsBindings::ReadyToCommitNavigation(
+    content::NavigationHandle* navigation_handle) {
+  if (navigation_handle->IsInMainFrame()) {
+    CreateFrontendHost(navigation_handle->GetRenderFrameHost());
+  }
 }
 
 #if !defined(OS_ANDROID)
-void ShellDevToolsBindings::CreateFrontendHost() {
-  if (!frontend_host_) {
-    frontend_host_.reset(DevToolsFrontendHost::Create(
-        web_contents()->GetMainFrame(),
-        base::Bind(&ShellDevToolsBindings::HandleMessageFromDevToolsFrontend,
-                   base::Unretained(this))));
-  }
+void ShellDevToolsBindings::CreateFrontendHost(
+    RenderFrameHost* render_frame_host) {
+  frontend_host_.reset(DevToolsFrontendHost::Create(
+      render_frame_host,
+      base::Bind(&ShellDevToolsBindings::HandleMessageFromDevToolsFrontend,
+                 base::Unretained(this))));
 }
 #endif
 
 #if defined(OS_ANDROID)
 void ShellDevToolsBindings::CreateFrontendHost() {}
 #endif
 
 void ShellDevToolsBindings::DocumentAvailableInMainFrame() {
   agent_host_ = DevToolsAgentHost::GetOrCreateFor(inspected_contents_);
   agent_host_->AttachClient(this);
@@ skipping 215 matching lines @@
 }
 
 void ShellDevToolsBindings::AgentHostClosed(DevToolsAgentHost* agent_host,
                                             bool replaced) {
   agent_host_ = nullptr;
   if (delegate_)
     delegate_->Close();
 }
 
 }  // namespace content