chrome/app/android/chrome_main_delegate_android.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/app/android/chrome_main_delegate_android.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/debug/trace_event.h"
   9 #include "chrome/browser/android/chrome_jni_registrar.h"
  10 #include "chrome/browser/android/chrome_startup_flags.h"
  11 #include "chrome/browser/android/uma_utils.h"
  12 #include "chrome/common/startup_metric_utils.h"
  13 #include "content/public/browser/browser_main_runner.h"
  14
  15 // ChromeMainDelegateAndroid is created when the library is loaded. It is always
  16 // done in the process's main Java thread. But for non browser process, e.g.
  17 // renderer process, it is not the native Chrome's main thread.
  18 ChromeMainDelegateAndroid::ChromeMainDelegateAndroid() {
  19 }
  20
  21 ChromeMainDelegateAndroid::~ChromeMainDelegateAndroid() {
  22 }
  23
  24 void ChromeMainDelegateAndroid::SandboxInitialized(
  25     const std::string& process_type) {
  26   ChromeMainDelegate::SandboxInitialized(process_type);
  27 }
  28
  29 int ChromeMainDelegateAndroid::RunProcess(
  30     const std::string& process_type,
  31     const content::MainFunctionParams& main_function_params) {
  32   TRACE_EVENT0("startup", "ChromeMainDelegateAndroid::RunProcess")
  33   if (process_type.empty()) {
  34     JNIEnv* env = base::android::AttachCurrentThread();
  35     RegisterApplicationNativeMethods(env);
  36
  37     // Because the browser process can be started asynchronously as a series of
  38     // UI thread tasks a second request to start it can come in while the
  39     // first request is still being processed. Chrome must keep the same
  40     // browser runner for the second request.
  41     // Also only record the start time the first time round, since this is the
  42     // start time of the application, and will be same for all requests.
  43     if (!browser_runner_.get()) {
  44       base::Time startTime = chrome::android::GetMainEntryPointTime();
  45       startup_metric_utils::RecordSavedMainEntryPointTime(startTime);
  46       browser_runner_.reset(content::BrowserMainRunner::Create());
  47     }
  48     return browser_runner_->Initialize(main_function_params);
  49   }
  50
  51   return ChromeMainDelegate::RunProcess(process_type, main_function_params);
  52 }
  53
  54 bool ChromeMainDelegateAndroid::BasicStartupComplete(int* exit_code) {
  55   SetChromeSpecificCommandLineFlags();
  56   return ChromeMainDelegate::BasicStartupComplete(exit_code);
  57 }
  58
  59 bool ChromeMainDelegateAndroid::RegisterApplicationNativeMethods(JNIEnv* env) {
  60   return chrome::android::RegisterJni(env);
  61 }