[Merge to M56] Fix View Frame Source for iframe of a file:// URL shows main frame's filename

[Merge to M56] Fix View Frame Source for iframe of a file:// URL shows main frame's filename

View Frame Source for iframe of a file:// URL used to show the main frame's
filename instead of the expected title derived from the iframe's page URL in
the form of "view-source:url". This CL fixes this and adds a browser test.

TBR=creis@chromium.org,sky@chromium.org
BUG=659040
TEST=browser_tests --gtest_filter=ChromeNavigationBrowserTest.TestViewFrameSource

Review-Url: https://codereview.chromium.org/2501083004
Cr-Commit-Position: refs/heads/master@{#435021}
(cherry picked from commit 4d116bd4f43359ce057a60c82c2188c93d49a638)

Committed: https://chromium.googlesource.com/chromium/src/+/e13c83eaae5c04aecfb3a7b75921be2b20b07a67

[afakhry, 2016-12-01 02:10:25]

Patchset #1 (id:1) has been deleted

[afakhry, 2016-12-01 02:16:58]

Description was changed from

==========
[Merge to M56] Fix View Frame Source for iframe of a file:// URL shows main
frame's filename

View Frame Source for iframe of a file:// URL used to show the main frame's
filename instead of the expected title derived from the iframe's page URL in
the form of "view-source:url". This CL fixes this and adds a browser test.

TBR=creis@chromium.org,sky@chromium.org
BUG=659040
TEST=browser_tests
--gtest_filter=ChromeNavigationBrowserTest.TestViewFrameSource

Review-Url: https://codereview.chromium.org/2501083004
Cr-Commit-Position: refs/heads/master@{#435021}
(cherry picked from commit 4d116bd4f43359ce057a60c82c2188c93d49a638)
==========

to

==========
[Merge to M56] Fix View Frame Source for iframe of a file:// URL shows main
frame's filename

View Frame Source for iframe of a file:// URL used to show the main frame's
filename instead of the expected title derived from the iframe's page URL in
the form of "view-source:url". This CL fixes this and adds a browser test.

TBR=creis@chromium.org,sky@chromium.org
BUG=659040
TEST=browser_tests
--gtest_filter=ChromeNavigationBrowserTest.TestViewFrameSource

Review-Url: https://codereview.chromium.org/2501083004
Cr-Commit-Position: refs/heads/master@{#435021}
(cherry picked from commit 4d116bd4f43359ce057a60c82c2188c93d49a638)

Committed:
https://chromium.googlesource.com/chromium/src/+/e13c83eaae5c04aecfb3a7b75921...
==========

[afakhry, 2016-12-01 02:16:58]

Committed patchset #1 (id:20001) manually as
e13c83eaae5c04aecfb3a7b75921be2b20b07a67 (presubmit successful).