headless: make initial screen/window sizes configurable.

headless/public/headless_browser.h

 // Copyright 2015 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 HEADLESS_PUBLIC_HEADLESS_BROWSER_H_
 #define HEADLESS_PUBLIC_HEADLESS_BROWSER_H_
 
 #include <memory>
 #include <string>
 #include <unordered_map>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "headless/public/headless_browser_context.h"
 #include "headless/public/headless_export.h"
 #include "headless/public/headless_web_contents.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/ip_endpoint.h"
+#include "ui/gfx/geometry/size.h"
 
 namespace base {
 class MessagePump;
 class SingleThreadTaskRunner;
 }
 
-namespace gfx {
-class Size;
-}
-
 namespace headless {
 
 // This class represents the global headless browser instance. To get a pointer
 // to one, call |HeadlessBrowserMain| to initiate the browser main loop. An
 // instance of |HeadlessBrowser| will be passed to the callback given to that
 // function.
 class HEADLESS_EXPORT HeadlessBrowser {
  public:
   struct Options;
 
@@ skipping 78 matching lines @@
 
   // Custom network protocol handlers. These can be used to override URL
   // fetching for different network schemes.
   ProtocolHandlerMap protocol_handlers;
 
   // Choose the GL implementation to use for rendering. A suitable
   // implementantion is selected by default. Setting this to an empty
   // string can be used to disable GL rendering (e.g., WebGL support).
   std::string gl_implementation;
 
+  // Default window size. This is also used to create the window tree host and
+  // as initial screen size. Defaults to 800x600.
+  gfx::Size window_size;
+
  private:
   Options(int argc, const char** argv);
 
   DISALLOW_COPY_AND_ASSIGN(Options);
 };
 
 class HeadlessBrowser::Options::Builder {
  public:
   Builder(int argc, const char** argv);
   Builder();
   ~Builder();
 
   Builder& SetUserAgent(const std::string& user_agent);
   Builder& EnableDevToolsServer(const net::IPEndPoint& endpoint);
   Builder& SetMessagePump(base::MessagePump* message_pump);
   Builder& SetProxyServer(const net::HostPortPair& proxy_server);
   Builder& SetHostResolverRules(const std::string& host_resolver_rules);
   Builder& SetSingleProcessMode(bool single_process_mode);
   Builder& SetDisableSandbox(bool disable_sandbox);
   Builder& SetProtocolHandlers(ProtocolHandlerMap protocol_handlers);
   Builder& SetGLImplementation(const std::string& gl_implementation);
+  Builder& SetWindowSize(const gfx::Size& window_size);
 
   Options Build();
 
  private:
   Options options_;
 
   DISALLOW_COPY_AND_ASSIGN(Builder);
 };
 
 // The headless browser may need to create child processes (e.g., a renderer
@@ skipping 23 matching lines @@
 // the main loop, it will only return after HeadlessBrowser::Shutdown() is
 // called, returning the exit code for the process. It is not possible to
 // initialize the browser again after it has been torn down.
 int HeadlessBrowserMain(
     HeadlessBrowser::Options options,
     const base::Callback<void(HeadlessBrowser*)>& on_browser_start_callback);
 
 }  // namespace headless
 
 #endif  // HEADLESS_PUBLIC_HEADLESS_BROWSER_H_