Fix style nit and update variable naming for AddToHomescreenManager.

chrome/browser/android/webapps/add_to_homescreen_manager.cc

Index: chrome/browser/android/webapps/add_to_homescreen_manager.cc
diff --git a/chrome/browser/android/webapps/add_to_homescreen_manager.cc b/chrome/browser/android/webapps/add_to_homescreen_manager.cc
index d9d086c5fe886687a465216ea289273d6ea3aa07..8c6a9a3b1efe808bbecf090c3fca6ad15ef6eb8e 100644
--- a/chrome/browser/android/webapps/add_to_homescreen_manager.cc
+++ b/chrome/browser/android/webapps/add_to_homescreen_manager.cc
@@ -70,10 +70,11 @@ void AddToHomescreenManager::AddShortcut(
 }
 
 void AddToHomescreenManager::Start(content::WebContents* web_contents) {
-  bool check_installable = false;
+  // Check whether to check WebApk compatibility.

[pkotwicz, 2016/09/30 21:57:03]

Nit: Remove the comment. The comment does not say anything that is not obvious
from reading the code.

For big blocks of code, comments which describe "what the code does" are useful.
For short blocks of code, comments which describe "why the code does something"
are useful, but not comments which describe "what the code does"

[F, 2016/10/03 14:04:02]

Done. Thx

+  bool check_webapk_compatible = false;
   if (ChromeWebApkHost::AreWebApkEnabled() &&
       content::IsOriginSecure(web_contents->GetLastCommittedURL())) {
-    check_installable = true;
+    check_webapk_compatible = true;
   } else {
     ShowDialog();
   }
@@ -83,7 +84,7 @@ void AddToHomescreenManager::Start(content::WebContents* web_contents) {
       ShortcutHelper::GetMinimumHomescreenIconSizeInDp(),
       ShortcutHelper::GetIdealSplashImageSizeInDp(),
       ShortcutHelper::GetMinimumSplashImageSizeInDp(),
-      check_installable, this);
+      check_webapk_compatible, this);
 }
 
 AddToHomescreenManager::~AddToHomescreenManager() {
@@ -153,7 +154,7 @@ void AddToHomescreenManager::OnUserTitleAvailable(
 void AddToHomescreenManager::OnDataAvailable(const ShortcutInfo& info,
                                              const SkBitmap& icon) {
   if (is_webapk_compatible_) {
-    CreateInfoBarForWebAPK(info, icon);
+    CreateInfoBarForWebApk(info, icon);
     return;
   }
 
@@ -168,7 +169,7 @@ void AddToHomescreenManager::OnDataAvailable(const ShortcutInfo& info,
     AddShortcut(info, icon);
 }
 
-void AddToHomescreenManager::CreateInfoBarForWebAPK(const ShortcutInfo& info,
+void AddToHomescreenManager::CreateInfoBarForWebApk(const ShortcutInfo& info,
                                                     const SkBitmap& icon) {
   banners::AppBannerInfoBarDelegateAndroid::Create(
       data_fetcher_->web_contents(), nullptr, info.user_title,