Shape Detection: Add two content browser tests for face detection

content/browser/shapedetection/shapedetection_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 "content/public/common/content_switches.h"
+#include "content/public/test/browser_test_utils.h"
+#include "content/public/test/content_browser_test.h"
+#include "content/public/test/content_browser_test_utils.h"
+
+namespace content {
+
+namespace {
+
+const char faceDetectionTestHtml[] = "/media/face_detection_test.html";

[Reilly Grant (use Gerrit), 2016/10/18 00:28:14]

kFaceDetectionTestHtml

+
+}  // namespace
+
+// This class contains content_browsertests for Shape Detection API, which
+// allows for generating bounding boxes of face for a still image.
+class ShapeDetectionBrowserTest : public ContentBrowserTest {
+ public:
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    // Specific flag to enable ShapeDetection and DOMRect API.
+    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+        switches::kEnableBlinkFeatures, "ShapeDetection, GeometryInterfaces");
+  }
+
+ protected:
+  void RunDetectFacesOnImageUrl(const std::string image_path,
+                                const std::string expected_results) {
+    ASSERT_TRUE(embedded_test_server()->Start());
+
+    GURL html_url(embedded_test_server()->GetURL(faceDetectionTestHtml));
+    GURL image_url(embedded_test_server()->GetURL(image_path));
+    NavigateToURL(shell(), html_url);
+    std::string js_command =
+        "detectFacesOnImageUrl('" + image_url.spec() + "')";
+    std::string results;
+    ASSERT_TRUE(ExecuteScriptAndExtractString(shell(), js_command, &results));
+    ASSERT_EQ(expected_results, results);
+  }
+};
+
+IN_PROC_BROWSER_TEST_F(ShapeDetectionBrowserTest,
+                       DetectFacesOnImageWithNoFaces) {
+  const std::string image_path = "/blank.jpg";
+  RunDetectFacesOnImageUrl(image_path, "");
+}
+
+IN_PROC_BROWSER_TEST_F(ShapeDetectionBrowserTest,
+                       DetectFacesOnImageWithOneFace) {
+  const std::string image_path = "/single_face.jpg";
+  RunDetectFacesOnImageUrl(image_path, "x=84.53125,y=91.03125,w=130,h=130#");
+}
+
+}  // namespace content