[DevTools] Send ack early when paused in mouse move to keep events coming.

content/renderer/devtools/devtools_agent.cc

 // Copyright (c) 2012 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/devtools/devtools_agent.h"
 
 #include <map>
 
 #include "base/debug/trace_event.h"
 #include "base/lazy_instance.h"
@@ skipping 59 matching lines @@
 typedef std::map<int, DevToolsAgent*> IdToAgentMap;
 base::LazyInstance<IdToAgentMap>::Leaky
     g_agent_for_routing_id = LAZY_INSTANCE_INITIALIZER;
 
 } //  namespace
 
 DevToolsAgent::DevToolsAgent(RenderViewImpl* render_view)
     : RenderViewObserver(render_view),
       is_attached_(false),
       is_devtools_client_(false),
-      gpu_route_id_(MSG_ROUTING_NONE) {
+      gpu_route_id_(MSG_ROUTING_NONE),
+      paused_in_mouse_move_(false) {
   g_agent_for_routing_id.Get()[routing_id()] = this;
 
   render_view->webview()->setDevToolsAgentClient(this);
   render_view->webview()->devToolsAgent()->setProcessId(
       base::Process::Current().pid());
 }
 
 DevToolsAgent::~DevToolsAgent() {
   g_agent_for_routing_id.Get().erase(routing_id());
   resetTraceEventCallback();
@@ skipping 36 matching lines @@
 void DevToolsAgent::saveAgentRuntimeState(
     const blink::WebString& state) {
   Send(new DevToolsHostMsg_SaveAgentRuntimeState(routing_id(), state.utf8()));
 }
 
 blink::WebDevToolsAgentClient::WebKitClientMessageLoop*
     DevToolsAgent::createClientMessageLoop() {
   return new WebKitClientMessageLoopImpl();
 }
 
+void DevToolsAgent::willEnterModalLoop() {
+  RenderViewImpl* impl = static_cast<RenderViewImpl*>(render_view());
+  paused_in_mouse_move_ = impl->SendAckForCurrentMouseMove();
+}
+
+void DevToolsAgent::didExitModalLoop() {
+  RenderViewImpl* impl = static_cast<RenderViewImpl*>(render_view());
+  if (paused_in_mouse_move_) {
+    impl->IgnoreAckForCurrentMouseMove();
+    paused_in_mouse_move_ = false;
+  }
+}
+
 void DevToolsAgent::resetTraceEventCallback()
 {
   TraceLog::GetInstance()->SetEventCallbackDisabled();
   base::subtle::NoBarrier_Store(&event_callback_, 0);
 }
 
 void DevToolsAgent::setTraceEventCallback(const WebString& category_filter,
                                           TraceEventCallback cb) {
   TraceLog* trace_log = TraceLog::GetInstance();
   base::subtle::NoBarrier_Store(&event_callback_,
@@ skipping 210 matching lines @@
   if (!web_view)
     return NULL;
   return web_view->devToolsAgent();
 }
 
 bool DevToolsAgent::IsAttached() {
   return is_attached_;
 }
 
 }  // namespace content