Adds ability for chrome to behave as mojo_runner

mojo/shell/runner/host/child_process_host.cc

 // 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.
 
 #include "mojo/shell/runner/host/child_process_host.h"
 
 #include <stdint.h>
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/process/kill.h"
 #include "base/process/launch.h"
 #include "base/task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "mojo/edk/embedder/embedder.h"
 #include "mojo/public/cpp/bindings/interface_ptr_info.h"
 #include "mojo/public/cpp/system/core.h"
+#include "mojo/shell/native_runner_delegate.h"
 #include "mojo/shell/runner/common/switches.h"
-#include "mojo/shell/runner/host/command_line_switch.h"
 
 #if defined(OS_LINUX) && !defined(OS_ANDROID)
 #include "sandbox/linux/services/namespace_sandbox.h"
 #endif
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
 namespace mojo {
 namespace shell {
 
-ChildProcessHost::ChildProcessHost(
-    base::TaskRunner* launch_process_runner,
-    bool start_sandboxed,
-    const base::FilePath& app_path,
-    const std::vector<CommandLineSwitch>& command_line_switches)
+ChildProcessHost::ChildProcessHost(base::TaskRunner* launch_process_runner,
+                                   NativeRunnerDelegate* delegate,
+                                   bool start_sandboxed,
+                                   const Identity& target,
+                                   const base::FilePath& app_path)
     : launch_process_runner_(launch_process_runner),
+      delegate_(delegate),
       start_sandboxed_(start_sandboxed),
+      target_(target),
       app_path_(app_path),
       start_child_process_event_(false, false),
-      command_line_switches_(command_line_switches),
       weak_factory_(this) {
   node_channel_.reset(new edk::PlatformChannelPair);
   primordial_pipe_token_ = edk::GenerateRandomToken();
   controller_.Bind(
       InterfacePtrInfo<mojom::ChildController>(
           edk::CreateParentMessagePipe(primordial_pipe_token_), 0u));
 }
 
 ChildProcessHost::ChildProcessHost(ScopedHandle channel)
     : launch_process_runner_(nullptr),
+      delegate_(nullptr),
       start_sandboxed_(false),
       start_child_process_event_(false, false),
       weak_factory_(this) {
   CHECK(channel.is_valid());
   ScopedMessagePipeHandle handle(MessagePipeHandle(channel.release().value()));
   controller_.Bind(
       InterfacePtrInfo<mojom::ChildController>(std::move(handle), 0u));
 }
 
 ChildProcessHost::~ChildProcessHost() {
@@ skipping 74 matching lines @@
     child_command_line.AppendSwitch(switches::kEnableSandbox);
 
   if (node_channel_.get()) {
     node_channel_->PrepareToPassClientHandleToChildProcess(
         &child_command_line, &handle_passing_info_);
   }
 
   child_command_line.AppendSwitchASCII(switches::kPrimordialPipeToken,
                                        primordial_pipe_token_);
 
-  for (const CommandLineSwitch& pair : command_line_switches_)
-    child_command_line.AppendSwitchASCII(pair.key, pair.value);
+  if (delegate_) {
+    delegate_->AdjustCommandLineArgumentsForTarget(target_,
+                                                   &child_command_line);
+  }
 
   base::LaunchOptions options;
 #if defined(OS_WIN)
   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
     options.handles_to_inherit = &handle_passing_info_;
   } else {
 #if defined(OFFICIAL_BUILD)
     CHECK(false) << "Launching mojo process with inherit_handles is insecure!";
 #endif
     options.inherit_handles = true;
@@ skipping 57 matching lines @@
 void ChildProcessHost::AppCompleted(int32_t result) {
   if (!on_app_complete_.is_null()) {
     auto on_app_complete = on_app_complete_;
     on_app_complete_.reset();
     on_app_complete.Run(result);
   }
 }
 
 }  // namespace shell
 }  // namespace mojo