PageInfo: prevent the crashes of instantiating with non-tab webContents

If PageInfo is instantiated with a webContents that is not from a tab,
a crash would happen. This CL is to allow for such a webContents in
this case.

How would it crash? The webContents not coming from a tab does not
have TabSpecificContentSettings attached to it. If PageInfo is
initiated with this webContents, PageInfo tries to use
TabSpecificContentSettings and causes a null pointer exception.

The general idea of this CL is that, for each PageInfo instantiation,
create TabSpecificContentSettings for WebContents who does not have
it.

This CL belongs to a larger change of extending the usage of PageInfo
dialog to the webContents of PaymentHandler UI.

Bug: 999196

Change-Id: Ifdcf15e61193d93f9a669d93111507b32dc91b0d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1944627
Commit-Queue: Liquan (Max) Gu <maxlg@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721801}

chrome/browser/ui/android/page_info/connection_info_popup_android.cc

@@ -59,6 +59,9 @@ ConnectionInfoPopupAndroid::ConnectionInfoPopupAndroid(
       SecurityStateTabHelper::FromWebContents(web_contents);
   DCHECK(helper);
 
+  // When |web_contents| is not from a Tab, |web_contents| does not have a
+  // |TabSpecificContentSettings| and need to create one; otherwise, noop.
+  TabSpecificContentSettings::CreateForWebContents(web_contents);
   presenter_ = std::make_unique<PageInfo>(
       this, Profile::FromBrowserContext(web_contents->GetBrowserContext()),
       TabSpecificContentSettings::FromWebContents(web_contents), web_contents,

chrome/browser/ui/android/page_info/page_info_controller_android.cc

@@ -62,6 +62,9 @@ PageInfoControllerAndroid::PageInfoControllerAndroid(
       SecurityStateTabHelper::FromWebContents(web_contents);
   DCHECK(helper);
 
+  // When |web_contents| is not from a Tab, |web_contents| does not have a
+  // |TabSpecificContentSettings| and need to create one; otherwise, noop.
+  TabSpecificContentSettings::CreateForWebContents(web_contents);
   presenter_ = std::make_unique<PageInfo>(
       this, Profile::FromBrowserContext(web_contents->GetBrowserContext()),
       TabSpecificContentSettings::FromWebContents(web_contents), web_contents,

chrome/browser/ui/views/page_info/page_info_bubble_view.cc

@@ -507,6 +507,9 @@ PageInfoBubbleView::PageInfoBubbleView(
   // before PageInfo updates trigger child layouts.
   SetSize(GetPreferredSize());
 
+  // When |web_contents| is not from a Tab, |web_contents| does not have a
+  // |TabSpecificContentSettings| and need to create one; otherwise, noop.
+  TabSpecificContentSettings::CreateForWebContents(web_contents);
   presenter_ = std::make_unique<PageInfo>(
       this, profile, TabSpecificContentSettings::FromWebContents(web_contents),
       web_contents, url, security_level, visible_security_state);