Add PartialLowEndModeOnMidRangeDevices flag: disable memory saving mode in V8...

License: GPL-2.0-or-later - https://spdx.org/licenses/GPL-2.0-or-later.html

---

 base/features.cc                                     |  4 ++++

 content/renderer/render_process_impl.cc              |  9 +++++++++

 .../Add-PartialLowEndModeOnMidRangeDevices-flag.inc  | 12 ++++++++++++

 2 files changed, 16 insertions(+)

 3 files changed, 25 insertions(+)

 create mode 100644 cromite_flags/chrome/browser/about_flags_cc/Add-PartialLowEndModeOnMidRangeDevices-flag.inc

diff --git a/base/features.cc b/base/features.cc

 void Init(EmitThreadControllerProfilerMetadata

               emit_thread_controller_profiler_metadata) {

   g_is_reduce_ppms_enabled.store(FeatureList::IsEnabled(kReducePPMs),

diff --git a/content/renderer/render_process_impl.cc b/content/renderer/render_process_impl.cc

--- a/content/renderer/render_process_impl.cc

+++ b/content/renderer/render_process_impl.cc

@@ -7,6 +7,7 @@

 #pragma allow_unsafe_libc_calls

 #endif

+#include "base/features.h"

 #include "content/renderer/render_process_impl.h"

 #include "build/build_config.h"

@@ -127,10 +128,18 @@ RenderProcessImpl::RenderProcessImpl()

       base::CommandLine::ForCurrentProcess()->HasSwitch(

           switches::kDisallowV8FeatureFlagOverrides);

   if (!disallow_v8_feature_flag_overrides) {

+#if BUILDFLAG(IS_ANDROID)

+    if (base::SysInfo::IsLowEndDevice()

+          && base::FeatureList::IsEnabled(base::features::kPartialLowEndModeOnMidRangeDevices)) {

+      std::string_view optimize_flag("--optimize-for-size");

+      v8::V8::SetFlagsFromString(optimize_flag.data(), optimize_flag.size());

+    }

+#else

     if (base::SysInfo::IsLowEndDevice()) {

       std::string_view optimize_flag("--optimize-for-size");

       v8::V8::SetFlagsFromString(optimize_flag.data(), optimize_flag.size());

     }

+#endif

     ////////////////////////////////////////////////////////////////////////////

     // V8 flags are typically set in gin/v8_initializer.cc. Only those flags

diff --git a/cromite_flags/chrome/browser/about_flags_cc/Add-PartialLowEndModeOnMidRangeDevices-flag.inc b/cromite_flags/chrome/browser/about_flags_cc/Add-PartialLowEndModeOnMidRangeDevices-flag.inc

new file mode 100644

--- /dev/null