Fix lint issues

* atom/browser/api/atom_api_session.cc:609:  Lines should be <= 80
  characters long  [whitespace/line_length] [2]
* atom/browser/api/atom_api_cookies.cc:218:  Missing username in TODO;
  it should look like "// TODO(my_username): Stuff."  [readability/todo]
  [2]
* atom/browser/api/atom_api_cookies.cc:218:  Should have a space between
  // and comment  [whitespace/comments] [4]
* atom/browser/api/atom_api_cookies.cc:219:  Should have a space between
  // and comment  [whitespace/comments] [4]
* atom/browser/api/atom_api_cookies.cc:220:  Lines should be <= 80
  characters long  [whitespace/line_length] [2]
* atom/browser/api/atom_api_cookies.cc:220:  Should have a space between
  // and comment  [whitespace/comments] [4]
* atom/browser/api/atom_api_cookies.cc:221:  Should have a space between
  // and comment  [whitespace/comments] [4]

atom/browser/api/atom_api_cookies.cc

@@ -215,10 +215,11 @@ Cookies::Cookies(v8::Isolate* isolate,
 Cookies::~Cookies() {
 }
 
-//TODO: 2017.06.29 klawler
-//Delete GetAll if possible (dependency in $MUON/lib/browser/api/extensions.js)
-//Verify or implement that sorting occurs on cookies by 1. path length 2. creation date
-//Possibly done here or in $MUON/lib/browser/api/extensions.js
+// TODO(klawler): 2017.06.29
+// Delete GetAll if possible (dependency in $MUON/lib/browser/api/extensions.js)
+// Verify or implement that sorting occurs on cookies by 1. path length 2.
+// creation date
+// Possibly done here or in $MUON/lib/browser/api/extensions.js
 
 void Cookies::GetAll(const base::DictionaryValue& filter,
                   const GetCallback& callback) {

atom/browser/api/atom_api_session.cc

@@ -606,7 +606,8 @@ mate::Handle<Session> Session::CreateFrom(
     return mate::CreateHandle(isolate, static_cast<Session*>(existing));
 
   auto handle = mate::CreateHandle(
-      isolate, new Session(isolate, Profile::FromBrowserContext(browser_context)));
+      isolate,
+      new Session(isolate, Profile::FromBrowserContext(browser_context)));
 
   // The Sessions should never be garbage collected, since the common pattern is
   // to use partition strings, instead of using the Session object directly.