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      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 "components/startup_metric_utils/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 }
     62