One example:

https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/android/offline_pages/offline_page_bridge.cc&l=167

  Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
  OfflinePageModel* offline_page_model =
      OfflinePageModelFactory::GetForBrowserContext(profile);

  OfflinePageBridge* bridge = static_cast<OfflinePageBridge*>(
      offline_page_model->GetUserData(kOfflinePageBridgeKey));

+cc interested parties.

Since we moved to offline page cache (instead of offline bookmarks) we no longer operate at all in incognito, and so the model might be null.

Tester report:

Was able to repro with Chrome canary build '52.0.2741.0', Please see crash ID: 58ee5d1c00000000

http://go/chrome-androidlogs1/6/568954-1
Steps to repro:
1. Launch Chrome canary
2. Open incognito tab
3. Visit https site such as 'https://bofa.com'
4. Click on site information button.
Chrome canary will crash.

Added file:
CrashOnIncognito.log

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9a12ce07eb8c36407ae27beba7b2082229cf5678

commit 9a12ce07eb8c36407ae27beba7b2082229cf5678
Author: dewittj <dewittj@chromium.org>
Date: Fri May 20 16:42:25 2016

New Tab Page: Work around potentially long delays if model is not loaded.

This avoids querying for offline pages if the model is not loaded, so
that the maximum possible delay is minimal (once the model is loaded,
all pages are stored in memory).

Additionally checks for null when obtaining the offline page model.

BUG= 607573 , 613359 

Review-Url: https://codereview.chromium.org/1982483002
Cr-Commit-Position: refs/heads/master@{#395096}

[modify] https://crrev.com/9a12ce07eb8c36407ae27beba7b2082229cf5678/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPage.java

Your change meets the bar and is auto-approved for M52 (branch: 2743)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/261c816b0900eec6c3b41277288ccd4020c23f5d

commit 261c816b0900eec6c3b41277288ccd4020c23f5d
Author: dewittj <dewittj@chromium.org>
Date: Mon May 23 21:44:20 2016

Offline Pages: Add NULL-checks for when the model is NULL (incognito mode)

Recently offline pages was changed to be completely disabled in
incognito profiles, since it is no longer associated with bookmarks, so
some consumers failed to check for null.

BUG= 613359 

Review-Url: https://codereview.chromium.org/2004473002
Cr-Commit-Position: refs/heads/master@{#395422}

[modify] https://crrev.com/261c816b0900eec6c3b41277288ccd4020c23f5d/chrome/browser/android/offline_pages/offline_page_bridge.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fac0bea283906de6dffd7e9fe7af6ba5872949fe

commit fac0bea283906de6dffd7e9fe7af6ba5872949fe
Author: Justin DeWitt <dewittj@chromium.org>
Date: Tue May 24 17:54:20 2016

New Tab Page: Work around potentially long delays if model is not loaded.

This avoids querying for offline pages if the model is not loaded, so
that the maximum possible delay is minimal (once the model is loaded,
all pages are stored in memory).

Additionally checks for null when obtaining the offline page model.

BUG= 607573 , 613359 

Review-Url: https://codereview.chromium.org/1982483002
Cr-Commit-Position: refs/heads/master@{#395096}
(cherry picked from commit 9a12ce07eb8c36407ae27beba7b2082229cf5678)

Review URL: https://codereview.chromium.org/2007563005 .

Cr-Commit-Position: refs/branch-heads/2743@{#38}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/fac0bea283906de6dffd7e9fe7af6ba5872949fe/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPage.java

Sorry about the double request but I'd also like to merge the revision in #8 - crrev.com/395422

Your change meets the bar and is auto-approved for M52 (branch: 2743)

Issue 614601 has been merged into this issue.

Adding ReleaseBlock-Dev since that tag was on Issue 614601

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2f02d09e1696e7f4df14a0f73712f51397a8f5db

commit 2f02d09e1696e7f4df14a0f73712f51397a8f5db
Author: Justin DeWitt <dewittj@chromium.org>
Date: Wed May 25 15:59:45 2016

Offline Pages: Add NULL-checks for when the model is NULL (incognito mode)

Recently offline pages was changed to be completely disabled in
incognito profiles, since it is no longer associated with bookmarks, so
some consumers failed to check for null.

BUG= 613359 

Review-Url: https://codereview.chromium.org/2004473002
Cr-Commit-Position: refs/heads/master@{#395422}
(cherry picked from commit 261c816b0900eec6c3b41277288ccd4020c23f5d)

Review URL: https://codereview.chromium.org/2007113007 .

Cr-Commit-Position: refs/branch-heads/2743@{#52}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/2f02d09e1696e7f4df14a0f73712f51397a8f5db/chrome/browser/android/offline_pages/offline_page_bridge.cc

Verified in 52.0.2743.8 build