Implement frame attribution (FrameBlamer)

content/renderer/render_frame_impl.cc

 // Copyright 2013 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/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 11 matching lines @@
 #include "base/memory/shared_memory.h"
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/process/process.h"
 #include "base/stl_util.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
+#include "base/trace_event/trace_event_argument.h"
 #include "build/build_config.h"
 #include "cc/base/switches.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
 #include "content/child/appcache/appcache_dispatcher.h"
 #include "content/child/permissions/permission_dispatcher.h"
 #include "content/child/plugin_messages.h"
 #include "content/child/quota_dispatcher.h"
 #include "content/child/request_extra_data.h"
 #include "content/child/service_worker/service_worker_handle_reference.h"
 #include "content/child/service_worker/service_worker_network_provider.h"
@@ skipping 784 matching lines @@
     int32_t widget_routing_id,
     bool hidden,
     const blink::WebScreenInfo& screen_info,
     CompositorDependencies* compositor_deps,
     blink::WebFrame* opener) {
   // A main frame RenderFrame must have a RenderWidget.
   DCHECK_NE(MSG_ROUTING_NONE, widget_routing_id);
 
   RenderFrameImpl* render_frame =
       RenderFrameImpl::Create(render_view, routing_id);
+  render_frame->InitializeBlameContext(nullptr);
   WebLocalFrame* web_frame = WebLocalFrame::create(
       blink::WebTreeScopeType::Document, render_frame, opener);
   render_frame->BindToWebFrame(web_frame);
   render_view->webview()->setMainFrame(web_frame);
   render_frame->render_widget_ = RenderWidget::CreateForFrame(
       widget_routing_id, hidden, screen_info, compositor_deps, web_frame);
   // TODO(kenrb): Observing shouldn't be necessary when we sort out
   // WasShown and WasHidden, separating page-level visibility from
   // frame-level visibility.
   // TODO(avi): This DCHECK is to track cleanup for https://crbug.com/545684
@@ skipping 26 matching lines @@
 
     blink::WebFrame* previous_sibling_web_frame = nullptr;
     RenderFrameProxy* previous_sibling_proxy =
         RenderFrameProxy::FromRoutingID(previous_sibling_routing_id);
     if (previous_sibling_proxy)
       previous_sibling_web_frame = previous_sibling_proxy->web_frame();
 
     // Create the RenderFrame and WebLocalFrame, linking the two.
     render_frame =
         RenderFrameImpl::Create(parent_proxy->render_view(), routing_id);
+    render_frame->InitializeBlameContext(FromRoutingID(parent_routing_id));
     web_frame = parent_web_frame->createLocalChild(
         replicated_state.scope, WebString::fromUTF8(replicated_state.name),
         WebString::fromUTF8(replicated_state.unique_name),
         replicated_state.sandbox_flags, render_frame,
         previous_sibling_web_frame, frame_owner_properties,
         ResolveOpener(opener_routing_id, nullptr));
 
     // The RenderFrame is created and inserted into the frame tree in the above
     // call to createLocalChild.
     render_frame->in_frame_tree_ = true;
   } else {
     RenderFrameProxy* proxy =
         RenderFrameProxy::FromRoutingID(proxy_routing_id);
     // The remote frame could've been detached while the remote-to-local
     // navigation was being initiated in the browser process. Drop the
     // navigation and don't create the frame in that case.  See
     // https://crbug.com/526304.
     if (!proxy)
       return;
 
     render_frame = RenderFrameImpl::Create(proxy->render_view(), routing_id);
+    render_frame->InitializeBlameContext(nullptr);
     render_frame->proxy_routing_id_ = proxy_routing_id;
     web_frame = blink::WebLocalFrame::createProvisional(
         render_frame, proxy->web_frame(), replicated_state.sandbox_flags,
         frame_owner_properties);
   }
   render_frame->BindToWebFrame(web_frame);
   CHECK(parent_routing_id != MSG_ROUTING_NONE || !web_frame->parent());
 
   if (widget_params.routing_id != MSG_ROUTING_NONE) {
     CHECK(!web_frame->parent() ||
@@ skipping 104 matching lines @@
       geolocation_dispatcher_(NULL),
       push_messaging_dispatcher_(NULL),
       presentation_dispatcher_(NULL),
       screen_orientation_dispatcher_(NULL),
       manifest_manager_(NULL),
       accessibility_mode_(AccessibilityModeOff),
       renderer_accessibility_(NULL),
       media_player_delegate_(NULL),
       is_using_lofi_(false),
       is_pasting_(false),
+      blame_context_(nullptr),
       weak_factory_(this) {
   std::pair<RoutingIDFrameMap::iterator, bool> result =
       g_routing_id_frame_map.Get().insert(std::make_pair(routing_id_, this));
   CHECK(result.second) << "Inserting a duplicate item.";
 
   RenderThread::Get()->AddRoute(routing_id_, this);
 
   render_view_->RegisterRenderFrame(this);
 
   // Everything below subclasses RenderFrameObserver and is automatically
@@ skipping 74 matching lines @@
     devtools_agent_ = new DevToolsAgent(this);
   }
 
   RegisterMojoServices();
 
   // We delay calling this until we have the WebFrame so that any observer or
   // embedder can call GetWebFrame on any RenderFrame.
   GetContentClient()->renderer()->RenderFrameCreated(this);
 }
 
+void RenderFrameImpl::InitializeBlameContext(RenderFrameImpl* parent_frame) {
+  DCHECK(!blame_context_);
+  blame_context_ = new FrameBlameContext(this, parent_frame);
+  blame_context_->Initialize();
+}
+
 RenderWidget* RenderFrameImpl::GetRenderWidget() {
   RenderFrameImpl* local_root =
       RenderFrameImpl::FromWebFrame(frame_->localRoot());
   return local_root->render_widget_.get();
 }
 
 #if defined(ENABLE_PLUGINS)
 void RenderFrameImpl::PepperPluginCreated(RendererPpapiHost* host) {
   FOR_EACH_OBSERVER(RenderFrameObserver, observers_,
                     DidCreatePepperPlugin(host));
@@ skipping 1396 matching lines @@
   return external_popup_menu_.get();
 #else
   return NULL;
 #endif
 }
 
 blink::WebCookieJar* RenderFrameImpl::cookieJar() {
   return &cookie_jar_;
 }
 
+blink::BlameContext* RenderFrameImpl::frameBlameContext() {
+  DCHECK(blame_context_);
+  return blame_context_;
+}
+
 blink::WebServiceWorkerProvider*
 RenderFrameImpl::createServiceWorkerProvider() {
   // At this point we should have non-null data source.
   DCHECK(frame_->dataSource());
   if (!ChildThreadImpl::current())
     return nullptr;  // May be null in some tests.
   ServiceWorkerNetworkProvider* provider =
       ServiceWorkerNetworkProvider::FromDocumentState(
           DocumentState::FromDataSource(frame_->dataSource()));
   DCHECK(provider);
@@ skipping 53 matching lines @@
 
   // Tracing analysis uses this to find main frames when this value is
   // MSG_ROUTING_NONE, and build the frame tree otherwise.
   TRACE_EVENT2("navigation", "RenderFrameImpl::createChildFrame",
                "id", routing_id_,
                "child", child_routing_id);
 
   // Create the RenderFrame and WebLocalFrame, linking the two.
   RenderFrameImpl* child_render_frame = RenderFrameImpl::Create(
       render_view_.get(), child_routing_id);
+  child_render_frame->InitializeBlameContext(this);
   blink::WebLocalFrame* web_frame =
       WebLocalFrame::create(scope, child_render_frame);
   child_render_frame->BindToWebFrame(web_frame);
 
   // Add the frame to the frame tree and initialize it.
   parent->appendChild(web_frame);
   child_render_frame->in_frame_tree_ = true;
   child_render_frame->Initialize();
 
   return web_frame;
@@ skipping 3391 matching lines @@
                                     int match_count,
                                     int ordinal,
                                     const WebRect& selection_rect,
                                     bool final_status_update) {
   Send(new FrameHostMsg_Find_Reply(routing_id_, request_id, match_count,
                                    selection_rect, ordinal,
                                    final_status_update));
 }
 
 }  // namespace content