Change from_surface default value to true

headless/lib/headless_web_contents_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 <memory>
 #include <string>
 #include <vector>
 
 #include "base/base64.h"
 #include "content/public/test/browser_test.h"
@@ skipping 143 matching lines @@
             .SetExpression("document.body.style.background = '#0000ff'")
             .Build();
     devtools_client_->GetRuntime()->Evaluate(
         std::move(params),
         base::Bind(&HeadlessWebContentsScreenshotTest::OnPageSetupCompleted,
                    base::Unretained(this)));
   }
 
   void OnPageSetupCompleted(std::unique_ptr<runtime::EvaluateResult> result) {
     devtools_client_->GetPage()->GetExperimental()->CaptureScreenshot(
-        page::CaptureScreenshotParams::Builder().SetFromSurface(true).Build(),
+        page::CaptureScreenshotParams::Builder().Build(),
         base::Bind(&HeadlessWebContentsScreenshotTest::OnScreenshotCaptured,
                    base::Unretained(this)));
   }
 
   void OnScreenshotCaptured(
       std::unique_ptr<page::CaptureScreenshotResult> result) {
     std::string base64 = result->GetData();
     EXPECT_GT(base64.length(), 0U);
     SkBitmap result_bitmap;
     EXPECT_TRUE(DecodePNG(base64, &result_bitmap));
@@ skipping 148 matching lines @@
     EXPECT_EQ("Embedder sent us: Hello", message);
     FinishAsynchronousTest();
   }
 
   bool GetCreateTabSocket() override { return true; }
 };
 
 HEADLESS_ASYNC_DEVTOOLED_TEST_F(HeadlessTabSocketTest);
 
 }  // namespace headless