BASELINE: Update Chromium to 77.0.3865.59

Change-Id: I1e89a5f3b009a9519a6705102ad65c92fe736f21
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

4 files changed, 37 insertions, 2 deletions

diff --git a/chromium/gin/BUILD.gn b/chromium/gin/BUILD.gn
index c0b70402974..e6ff98edda3 100644
--- a/chromium/gin/BUILD.gn
+++ b/chromium/gin/BUILD.gn
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//build/buildflag_header.gni")
 import("//build/config/allocator.gni")
 import("//testing/test.gni")
 import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
diff --git a/chromium/gin/gin_features.cc b/chromium/gin/gin_features.cc
index 3e6f1cc2fe2..18fbecbb0e5 100644
--- a/chromium/gin/gin_features.cc
+++ b/chromium/gin/gin_features.cc
@@ -14,12 +14,24 @@ const base::Feature kV8OptimizeJavascript{"V8OptimizeJavascript",
 const base::Feature kV8FlushBytecode{"V8FlushBytecode",
                                      base::FEATURE_ENABLED_BY_DEFAULT};
 
+// Enables lazy feedback allocation in V8.
+const base::Feature kV8LazyFeedbackAllocation{"V8LazyFeedbackAllocation",
+                                              base::FEATURE_ENABLED_BY_DEFAULT};
+
 // Enables memory reducer for small heaps in V8.
 const base::Feature kV8MemoryReducerForSmallHeaps{
     "V8MemoryReducerForSmallHeaps", base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Increase V8 heap size to 4GB if the physical memory is bigger than 16 GB.
 const base::Feature kV8HugeMaxOldGenerationSize{
-    "V8HugeMaxOldGenerationSize", base::FEATURE_DISABLED_BY_DEFAULT};
+    "V8HugeMaxOldGenerationSize", base::FEATURE_ENABLED_BY_DEFAULT};
+
+// Enables new background GC scheduling heuristics.
+const base::Feature kV8GCBackgroundSchedule{"V8GCBackgroundSchedule",
+                                            base::FEATURE_DISABLED_BY_DEFAULT};
+
+// Perform less compaction in non-memory reducing mode.
+const base::Feature kV8GCLessCompaction{"V8GCLessCompaction",
+                                        base::FEATURE_DISABLED_BY_DEFAULT};
 
 }  // namespace features
diff --git a/chromium/gin/gin_features.h b/chromium/gin/gin_features.h
index f5f18b3ab25..2d5652f7008 100644
--- a/chromium/gin/gin_features.h
+++ b/chromium/gin/gin_features.h
@@ -12,8 +12,11 @@ namespace features {
 
 GIN_EXPORT extern const base::Feature kV8OptimizeJavascript;
 GIN_EXPORT extern const base::Feature kV8FlushBytecode;
+GIN_EXPORT extern const base::Feature kV8LazyFeedbackAllocation;
 GIN_EXPORT extern const base::Feature kV8MemoryReducerForSmallHeaps;
 GIN_EXPORT extern const base::Feature kV8HugeMaxOldGenerationSize;
+GIN_EXPORT extern const base::Feature kV8GCBackgroundSchedule;
+GIN_EXPORT extern const base::Feature kV8GCLessCompaction;
 
 }  // namespace features
 
diff --git a/chromium/gin/v8_initializer.cc b/chromium/gin/v8_initializer.cc
index 770f3cb5299..aab46a000c5 100644
--- a/chromium/gin/v8_initializer.cc
+++ b/chromium/gin/v8_initializer.cc
@@ -225,6 +225,13 @@ void V8Initializer::Initialize(IsolateHolder::ScriptMode mode) {
                                sizeof(no_flush_bytecode) - 1);
   }
 
+  if (!base::FeatureList::IsEnabled(features::kV8LazyFeedbackAllocation)) {
+    static const char no_lazy_feedback_allocation[] =
+        "--no-lazy-feedback-allocation";
+    v8::V8::SetFlagsFromString(no_lazy_feedback_allocation,
+                               sizeof(no_lazy_feedback_allocation) - 1);
+  }
+
   if (!base::FeatureList::IsEnabled(features::kV8MemoryReducerForSmallHeaps)) {
     static const char no_memory_reducer[] =
         "--no-memory-reducer-for-small-heaps";
@@ -239,6 +246,20 @@ void V8Initializer::Initialize(IsolateHolder::ScriptMode mode) {
                                sizeof(huge_max_old_generation_size) - 1);
   }
 
+  if (base::FeatureList::IsEnabled(features::kV8GCBackgroundSchedule)) {
+    static const char gc_experiment_background_schedule[] =
+        "--gc_experiment_background_schedule";
+    v8::V8::SetFlagsFromString(gc_experiment_background_schedule,
+                               sizeof(gc_experiment_background_schedule) - 1);
+  }
+
+  if (base::FeatureList::IsEnabled(features::kV8GCLessCompaction)) {
+    static const char gc_experiment_less_compaction[] =
+        "--gc_experiment_less_compaction";
+    v8::V8::SetFlagsFromString(gc_experiment_less_compaction,
+                               sizeof(gc_experiment_less_compaction) - 1);
+  }
+
   if (IsolateHolder::kStrictMode == mode) {
     static const char use_strict[] = "--use_strict";
     v8::V8::SetFlagsFromString(use_strict, sizeof(use_strict) - 1);