DevTools: allow storing devtools preferences on the browser side.

chrome/browser/devtools/devtools_ui_bindings.cc

Index: chrome/browser/devtools/devtools_ui_bindings.cc
diff --git a/chrome/browser/devtools/devtools_ui_bindings.cc b/chrome/browser/devtools/devtools_ui_bindings.cc
index 294b9c29a24c45a7d158fd6d12dd8c7a5ef7a1f5..3f751d300730cf1ce7985726b725c00905255aee 100644
--- a/chrome/browser/devtools/devtools_ui_bindings.cc
+++ b/chrome/browser/devtools/devtools_ui_bindings.cc
@@ -8,6 +8,7 @@
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
+#include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ -17,6 +18,7 @@
 #include "chrome/browser/devtools/devtools_target_impl.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/prefs/pref_service_syncable.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/themes/theme_service.h"
@@ -28,6 +30,7 @@
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/chrome_manifest_url_handlers.h"
+#include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
@@ -205,6 +208,8 @@ class DefaultBindingsDelegate : public DevToolsUIBindings::Delegate {
   void SetIsDocked(bool is_docked) override {}
   void OpenInNewTab(const std::string& url) override;
   void SetWhitelistedShortcuts(const std::string& message) override {}
+  using DispatchCallback =
+      DevToolsEmbedderMessageDispatcher::Delegate::DispatchCallback;
 
   void InspectedContentsClosing() override;
   void OnLoadCompleted() override {}
@@ -735,6 +740,31 @@ void DevToolsUIBindings::SetDevicesUpdatesEnabled(bool enabled) {
   }
 }
 
+void DevToolsUIBindings::GetPreferences(const DispatchCallback& callback) {
+  const DictionaryValue* prefs =
+      profile_->GetPrefs()->GetDictionary(prefs::kDevToolsPreferences);
+  callback.Run(prefs);
+}
+
+void DevToolsUIBindings::SetPreference(const std::string& name,
+                                   const std::string& value) {
+  DictionaryPrefUpdate update(profile_->GetPrefs(),
+                              prefs::kDevToolsPreferences);
+  update.Get()->SetStringWithoutPathExpansion(name, value);
+}
+
+void DevToolsUIBindings::RemovePreference(const std::string& name) {
+  DictionaryPrefUpdate update(profile_->GetPrefs(),
+                              prefs::kDevToolsPreferences);
+  update.Get()->RemoveWithoutPathExpansion(name, nullptr);
+}
+
+void DevToolsUIBindings::ClearPreferences() {
+  DictionaryPrefUpdate update(profile_->GetPrefs(),
+                              prefs::kDevToolsPreferences);
+  update.Get()->Clear();
+}
+
 void DevToolsUIBindings::SendMessageToBrowser(const std::string& message) {
   if (agent_host_.get())
     agent_host_->DispatchProtocolMessage(message);