[devtools] Support different encodings for Page.CaptureScreenshot.

content/browser/devtools/protocol/page_handler.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_
 
 #include <stddef.h>
 
 #include "base/compiler_specific.h"
@@ skipping 47 matching lines @@
   Response Navigate(const std::string& url, Page::FrameId* frame_id) override;
   Response StopLoading() override;
 
   using NavigationEntries = protocol::Array<Page::NavigationEntry>;
   Response GetNavigationHistory(
       int* current_index,
       std::unique_ptr<NavigationEntries>* entries) override;
   Response NavigateToHistoryEntry(int entry_id) override;
 
   void CaptureScreenshot(
+      Maybe<std::string> format,
+      Maybe<int> quality,
       std::unique_ptr<CaptureScreenshotCallback> callback) override;
   Response StartScreencast(Maybe<std::string> format,
                            Maybe<int> quality,
                            Maybe<int> max_width,
                            Maybe<int> max_height,
                            Maybe<int> every_nth_frame) override;
   Response StopScreencast() override;
   Response ScreencastFrameAck(int session_id) override;
 
   Response HandleJavaScriptDialog(bool accept,
@@ skipping 16 matching lines @@
   WebContentsImpl* GetWebContents();
   void NotifyScreencastVisibility(bool visible);
   void InnerSwapCompositorFrame();
   void ScreencastFrameCaptured(cc::CompositorFrameMetadata metadata,
                                const SkBitmap& bitmap,
                                ReadbackResponse response);
   void ScreencastFrameEncoded(cc::CompositorFrameMetadata metadata,
                               const base::Time& timestamp,
                               const std::string& data);
 
-  void ScreenshotCaptured(
-      std::unique_ptr<CaptureScreenshotCallback> callback,
-      const unsigned char* png_data,
-      size_t png_size);
+  void ScreenshotCaptured(std::unique_ptr<CaptureScreenshotCallback> callback,
+                          const unsigned char* image_data,
+                          size_t data_size);
 
   void OnColorPicked(int r, int g, int b, int a);
 
   // NotificationObserver overrides.
   void Observe(int type,
                const NotificationSource& source,
                const NotificationDetails& details) override;
 
   bool enabled_;
 
@@ skipping 22 matching lines @@
   NotificationRegistrar registrar_;
   base::WeakPtrFactory<PageHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PageHandler);
 };
 
 }  // namespace protocol
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_