Add Browser.deterministicMode for Puppeteer

This optionally sets initial_virtual_time and beginFrameControl.

Change-Id: I6a0d6237137dbda57578a92b5abb4f160049ac20
Reviewed-on: https://chromium-review.googlesource.com/937402
Commit-Queue: Alex Clarke <alexclarke@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Eric Seckler <eseckler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#540804}

headless/lib/browser/headless_devtools_manager_delegate.cc

@@ -8,9 +8,11 @@
 #include <utility>
 
 #include "base/base64.h"
+#include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
 #include "build/build_config.h"
+#include "cc/base/switches.h"
 #include "components/viz/common/frame_sinks/begin_frame_args.h"
 #include "components/viz/common/switches.h"
 #include "content/public/browser/browser_thread.h"
@@ -18,10 +20,12 @@
 #include "content/public/browser/devtools_frontend_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/content_switches.h"
 #include "headless/grit/headless_lib_resources.h"
 #include "headless/lib/browser/headless_browser_context_impl.h"
 #include "headless/lib/browser/headless_browser_impl.h"
 #include "headless/lib/browser/headless_web_contents_impl.h"
+#include "headless/public/devtools/domains/headless_experimental.h"
 #include "headless/public/devtools/domains/target.h"
 #include "printing/units.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ -285,43 +289,48 @@ HeadlessDevToolsManagerDelegate::HeadlessDevToolsManagerDelegate(
     : browser_(std::move(browser)) {
   // TODO(eseckler): Use third_party/inspector_protocol to generate harnesses
   // for commands, rather than binding commands here manually.
-  command_map_["Target.createTarget"] = base::Bind(
+  command_map_["Target.createTarget"] = base::BindRepeating(
       &HeadlessDevToolsManagerDelegate::CreateTarget, base::Unretained(this));
-  command_map_["Target.closeTarget"] = base::Bind(
+  command_map_["Target.closeTarget"] = base::BindRepeating(
       &HeadlessDevToolsManagerDelegate::CloseTarget, base::Unretained(this));
-  command_map_["Target.createBrowserContext"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::CreateBrowserContext,
-                 base::Unretained(this));
-  command_map_["Target.disposeBrowserContext"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::DisposeBrowserContext,
-                 base::Unretained(this));
-  command_map_["Browser.close"] = base::Bind(
+  command_map_["Target.createBrowserContext"] = base::BindRepeating(
+      &HeadlessDevToolsManagerDelegate::CreateBrowserContext,
+      base::Unretained(this));
+  command_map_["Target.disposeBrowserContext"] = base::BindRepeating(
+      &HeadlessDevToolsManagerDelegate::DisposeBrowserContext,
+      base::Unretained(this));
+  command_map_["Browser.close"] = base::BindRepeating(
       &HeadlessDevToolsManagerDelegate::Close, base::Unretained(this));
   command_map_["Browser.getWindowForTarget"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::GetWindowForTarget,
-                 base::Unretained(this));
+      base::BindRepeating(&HeadlessDevToolsManagerDelegate::GetWindowForTarget,
+                          base::Unretained(this));
   command_map_["Browser.getWindowBounds"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::GetWindowBounds,
-                 base::Unretained(this));
+      base::BindRepeating(&HeadlessDevToolsManagerDelegate::GetWindowBounds,
+                          base::Unretained(this));
   command_map_["Browser.setWindowBounds"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::SetWindowBounds,
-                 base::Unretained(this));
-  command_map_["HeadlessExperimental.enable"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::EnableHeadlessExperimental,
-                 base::Unretained(this));
-  command_map_["HeadlessExperimental.disable"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::DisableHeadlessExperimental,
-                 base::Unretained(this));
+      base::BindRepeating(&HeadlessDevToolsManagerDelegate::SetWindowBounds,
+                          base::Unretained(this));
+  command_map_["HeadlessExperimental.enterDeterministicMode"] =
+      base::BindRepeating(
+          &HeadlessDevToolsManagerDelegate::EnterDeterministicMode,
+          base::Unretained(this));
+  command_map_["HeadlessExperimental.enable"] = base::BindRepeating(
+      &HeadlessDevToolsManagerDelegate::EnableHeadlessExperimental,
+      base::Unretained(this));
+  command_map_["HeadlessExperimental.disable"] = base::BindRepeating(
+      &HeadlessDevToolsManagerDelegate::DisableHeadlessExperimental,
+      base::Unretained(this));
 
   unhandled_command_map_["Network.emulateNetworkConditions"] =
-      base::Bind(&HeadlessDevToolsManagerDelegate::EmulateNetworkConditions,
-                 base::Unretained(this));
-  unhandled_command_map_["Network.disable"] = base::Bind(
+      base::BindRepeating(
+          &HeadlessDevToolsManagerDelegate::EmulateNetworkConditions,
+          base::Unretained(this));
+  unhandled_command_map_["Network.disable"] = base::BindRepeating(
       &HeadlessDevToolsManagerDelegate::NetworkDisable, base::Unretained(this));
 
-  async_command_map_["Page.printToPDF"] = base::Bind(
+  async_command_map_["Page.printToPDF"] = base::BindRepeating(
       &HeadlessDevToolsManagerDelegate::PrintToPDF, base::Unretained(this));
-  async_command_map_["HeadlessExperimental.beginFrame"] = base::Bind(
+  async_command_map_["HeadlessExperimental.beginFrame"] = base::BindRepeating(
       &HeadlessDevToolsManagerDelegate::BeginFrame, base::Unretained(this));
 }
 
@@ -462,7 +471,7 @@ void HeadlessDevToolsManagerDelegate::PrintToPDF(
   }
   HeadlessPrintManager::FromWebContents(web_contents)
       ->GetPDFContents(rfh, settings,
-                       base::Bind(&PDFCreated, callback, command_id));
+                       base::BindRepeating(&PDFCreated, callback, command_id));
 #else
   callback.Run(CreateErrorResponse(command_id, kErrorServerError,
                                    "Printing is not enabled"));
@@ -583,6 +592,25 @@ HeadlessDevToolsManagerDelegate::CreateBrowserContext(
   return CreateSuccessResponse(command_id, std::move(result));
 }
 
+std::unique_ptr<base::DictionaryValue>
+HeadlessDevToolsManagerDelegate::EnterDeterministicMode(
+    content::DevToolsAgentHost* agent_host,
+    content::DevToolsAgentHostClient* client,
+    int command_id,
+    const base::DictionaryValue* params) {
+  if (const base::Value* initial_date = params->FindKey("initialDate")) {
+    browser_->options()->initial_virtual_time =
+        base::Time::FromDoubleT(initial_date->GetDouble());
+  } else {
+    browser_->options()->initial_virtual_time = base::nullopt;
+  }
+  std::unique_ptr<base::Value> result(
+      headless_experimental::EnterDeterministicModeResult::Builder()
+          .Build()
+          ->Serialize());
+  return CreateSuccessResponse(command_id, std::move(result));
+}
+
 std::unique_ptr<base::DictionaryValue>
 HeadlessDevToolsManagerDelegate::DisposeBrowserContext(
     content::DevToolsAgentHost* agent_host,
@@ -963,10 +991,11 @@ void HeadlessDevToolsManagerDelegate::BeginFrame(
                     "single BeginFrame should be active at the same time.";
   }
 
-  headless_contents->BeginFrame(frame_timeticks, deadline, interval,
-                                no_display_updates, capture_screenshot,
-                                base::Bind(&OnBeginFrameFinished, command_id,
-                                           callback, encoding, quality));
+  headless_contents->BeginFrame(
+      frame_timeticks, deadline, interval, no_display_updates,
+      capture_screenshot,
+      base::BindRepeating(&OnBeginFrameFinished, command_id, callback, encoding,
+                          quality));
 }
 
 }  // namespace headless

headless/lib/browser/headless_devtools_manager_delegate.h

@@ -118,6 +118,12 @@ class HeadlessDevToolsManagerDelegate
       int command_id,
       const base::DictionaryValue* params);
 
+  std::unique_ptr<base::DictionaryValue> EnterDeterministicMode(
+      content::DevToolsAgentHost* agent_host,
+      content::DevToolsAgentHostClient* client,
+      int command_id,
+      const base::DictionaryValue* params);
+
   void SetNetworkConditions(
       std::vector<HeadlessBrowserContext*> browser_contexts,
       HeadlessNetworkConditions conditions);

third_party/WebKit/Source/core/inspector/browser_protocol.json

@@ -5343,6 +5343,18 @@
                         }
                     ]
                 },
+                {
+                    "name": "enterDeterministicMode",
+                    "description": "Puts the browser into deterministic mode.  Only effective for subsequently created web contents.\nOnly supported in headless mode.  Once set there's no way of leaving deterministic mode.",
+                    "parameters": [
+                        {
+                            "name": "initialDate",
+                            "description": "Number of seconds since the Epoch",
+                            "optional": true,
+                            "type": "number"
+                        }
+                    ]
+                },
                 {
                     "name": "disable",
                     "description": "Disables headless events for the target."
@@ -12424,4 +12436,4 @@
             ]
         }
     ]
-}
+}
\ No newline at end of file

third_party/WebKit/Source/core/inspector/browser_protocol.pdl

@@ -2441,6 +2441,13 @@ experimental domain HeadlessExperimental
       # Base64-encoded image data of the screenshot, if one was requested and successfully taken.
       optional string screenshotData
 
+  # Puts the browser into deterministic mode.  Only effective for subsequently created web contents.
+  # Only supported in headless mode.  Once set there's no way of leaving deterministic mode.
+  command enterDeterministicMode
+    parameters
+      # Number of seconds since the Epoch
+      optional number initialDate
+
   # Disables headless events for the target.
   command disable