MediaCaptureFromElement: add content_browsertests

content/browser/media/webrtc/webrtc_capture_from_element_browsertest.cc

 // Copyright 2016 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 "base/command_line.h"
-#include "base/macros.h"
-#include "build/build_config.h"
-#include "content/public/test/browser_test_utils.h"
-#include "content/public/test/content_browser_test_utils.h"
+#include "base/strings/stringprintf.h"
+#include "content/public/common/content_switches.h"
 #include "content/test/webrtc_content_browsertest_base.h"
+#include "media/base/test_data_util.h"
 
 namespace {
 
 static const char kCanvasTestHtmlPage[] = "/media/canvas_capture_color.html";
 
+static const char kVideoAudioHtmlFile[] =
+    "/media/video_audio_element_capture_test.html";
+
+static struct FileAndTypeParameters {
+  bool has_video;
+  bool has_audio;
+  bool use_audio_tag;
+  std::string filename;
+} const kFileAndTypeParameters[] = {
+    {true, false, false, "bear-320x240-video-only.webm"},
+    {false, true, false, "bear-320x240-audio-only.webm"},
+    {true, true, false, "bear-320x240.webm"},
+    {false, true, true, "bear-320x240-audio-only.webm"},
+};
+
 }  // namespace
 
 namespace content {
 
-// This class tests the rgba color values produced by canvas capture.
-class WebRtcCanvasCaptureTest : public WebRtcContentBrowserTest {
+// This class is the browser tests for Media Capture from DOM Elements API,
+// which allows for creation of a MediaStream out of a <canvas>, <video> or
+// <audio> element.
+class WebRtcCaptureFromElementBrowserTest
+    : public WebRtcContentBrowserTest,
+      public testing::WithParamInterface<struct FileAndTypeParameters> {
  public:
-  WebRtcCanvasCaptureTest() {}
-  ~WebRtcCanvasCaptureTest() override {}
+  WebRtcCaptureFromElementBrowserTest() {}
+  ~WebRtcCaptureFromElementBrowserTest() override {}
+
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    WebRtcContentBrowserTest::SetUpCommandLine(command_line);
+    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+        switches::kEnableBlinkFeatures, "MediaCaptureFromVideo");
+
+    // Allow <video>/<audio>.play() when not initiated by user gesture.
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kDisableGestureRequirementForMediaPlayback);
+  }
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(WebRtcCanvasCaptureTest);
+  DISALLOW_COPY_AND_ASSIGN(WebRtcCaptureFromElementBrowserTest);
 };
 
-IN_PROC_BROWSER_TEST_F(WebRtcCanvasCaptureTest,
-    VerifyCanvasCaptureColor) {
+IN_PROC_BROWSER_TEST_F(WebRtcCaptureFromElementBrowserTest,
+                       VerifyCanvasCaptureColor) {
   MakeTypicalCall("testCanvasCaptureColors();", kCanvasTestHtmlPage);
 }
 
+IN_PROC_BROWSER_TEST_P(WebRtcCaptureFromElementBrowserTest,
+                       CaptureFromMediaElement) {
+  MakeTypicalCall(
+      base::StringPrintf("testCaptureFromMediaElement(\"%s\", %d, %d, %d);",
+                         GetParam().filename.c_str(),
+                         GetParam().has_video,
+                         GetParam().has_audio,
+                         GetParam().use_audio_tag),
+      kVideoAudioHtmlFile);
+}
+
+INSTANTIATE_TEST_CASE_P(,
+                        WebRtcCaptureFromElementBrowserTest,
+                        testing::ValuesIn(kFileAndTypeParameters));
 }  // namespace content