Exceptions for Web Notifications and the Push API by default.

content/browser/android/content_startup_flags.cc

 // Copyright (c) 2012 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 "content/browser/android/content_startup_flags.h"
 
+#include "base/android/build_info.h"
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/sys_info.h"
 #include "cc/base/switches.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/native_theme/native_theme_switches.h"
 
 namespace content {
+namespace {
+
+// Android SDK API level for the Jelly Bean release.
+const int kAndroidJellyBeanApiLevel = 16;
+
+}  // namespace
 
 void SetContentCommandLineFlags(bool single_process,
                                 const std::string& plugin_descriptor) {
   // May be called multiple times, to cover all possible program entry points.
   static bool already_initialized = false;
   if (already_initialized)
     return;
   already_initialized = true;
 
   base::CommandLine* parsed_command_line =
@@ skipping 34 matching lines @@
 
   // On legacy low-memory devices the behavior has not been studied with regard
   // to having an extra process with similar priority as the foreground renderer
   // and given that the system will often be looking for a process to be killed
   // on such systems.
   if (base::SysInfo::IsLowEndDevice())
     parsed_command_line->AppendSwitch(switches::kInProcessGPU);
 
   parsed_command_line->AppendSwitch(switches::kDisableGpuShaderDiskCache);
 
+  // Web Notifications are only supported on Android JellyBean and beyond.
+  if (base::android::BuildInfo::GetInstance()->sdk_int() <
+      kAndroidJellyBeanApiLevel) {
+    parsed_command_line->AppendSwitch(switches::kDisableNotifications);
+  }
+
   parsed_command_line->AppendSwitch(switches::kEnableViewportMeta);
   parsed_command_line->AppendSwitch(
       switches::kMainFrameResizesAreOrientationChanges);
 
   // Disable anti-aliasing.
   parsed_command_line->AppendSwitch(
       cc::switches::kDisableCompositedAntialiasing);
 
   parsed_command_line->AppendSwitch(switches::kUIPrioritizeInGpuProcess);
 
   parsed_command_line->AppendSwitch(switches::kEnableDelegatedRenderer);
 
   if (!plugin_descriptor.empty()) {
     parsed_command_line->AppendSwitchNative(
       switches::kRegisterPepperPlugins, plugin_descriptor);
   }
 
   // Disable profiler timing by default.
   if (!parsed_command_line->HasSwitch(switches::kProfilerTiming)) {
     parsed_command_line->AppendSwitchASCII(
         switches::kProfilerTiming, switches::kProfilerTimingDisabledValue);
   }
 }
 
 }  // namespace content