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Add a way to drop all cached memory

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This commit is contained in:
Paul Betts 2016-05-12 14:36:49 -07:00
parent 22a3765394
commit d83c36e0fd
2 changed files with 12 additions and 1 deletions
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12
atom/renderer/api/atom_api_web_frame.cc
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@ -10,6 +10,7 @@
#include "atom/common/native_mate_converters/gfx_converter.h"
#include "atom/common/native_mate_converters/string16_converter.h"
#include "atom/renderer/api/atom_api_spell_check_client.h"
#include "base/memory/memory_pressure_listener.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_view.h"
#include "native_mate/dictionary.h"
@ -177,6 +178,14 @@ v8::Local<v8::Value> WebFrame::GetResourceUsage(v8::Isolate* isolate) {
return mate::Converter<blink::WebCache::ResourceTypeStats>::ToV8(isolate, stats);
}
void WebFrame::PurgeCaches(v8::Isolate* isolate) {
isolate->IdleNotificationDeadline(0.5);
blink::WebCache::clear();
base::MemoryPressureListener::NotifyMemoryPressure(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL);
}
// static
void WebFrame::BuildPrototype(
v8::Isolate* isolate, v8::Local<v8::ObjectTemplate> prototype) {
@ -201,7 +210,8 @@ void WebFrame::BuildPrototype(
&WebFrame::RegisterURLSchemeAsPrivileged)
.SetMethod("insertText", &WebFrame::InsertText)
.SetMethod("executeJavaScript", &WebFrame::ExecuteJavaScript)
.SetMethod("getResourceUsage", &WebFrame::GetResourceUsage);
.SetMethod("getResourceUsage", &WebFrame::GetResourceUsage)
.SetMethod("purgeCaches", &WebFrame::PurgeCaches);
}
} // namespace api

1
atom/renderer/api/atom_api_web_frame.h
View file

@ -72,6 +72,7 @@ class WebFrame : public mate::Wrappable<WebFrame> {
// Resource related methods
v8::Local<v8::Value> GetResourceUsage(v8::Isolate* isolate);
void PurgeCaches(v8::Isolate* isolate);
scoped_ptr<SpellCheckClient> spell_check_client_;