Chrome Version: 63.0.3239.70/10032.59.0 beta-channel Daisy,Candy,Peppy ,Quawks and Reks
OS: Chrome

What steps will reproduce the problem?
(1)Sign into User -> Navigate to chrome://settings page-> Save the page
(2)Page is saved with '.mhtml' extension -> Now Go to Files App -> Select saved page
(3)Now Right Click and select 'Get info' option or click on 'Space' Key
-> page preview is seen -> scroll down and observe unnecessary space is seen (Please refer Video and screenshot)

Expected: Unnecessary space should not be seen in HTML page preview 
Actual: Instead unnecessary space is seen in page preview 

This is Non-Regression Issue as 'Get info' option is newly introduced from M-55

@fukino: Please confirm the issue

Note:
1)In M-55 & M-56 'No Preview available' Message is seen 
And from M-57 Blank page preview is seen 
2)From M-63 page preview is seen
3)Issue is also seen on latest M-64
 

Deleted: Actual_UnnecessarySpace.webm 6.0 MB

	Actual_UnnecessarySpace.webm 6.0 MB View Download

Deleted: Actual_UnnecessarySpace.png 65.0 KB

	Actual_UnnecessarySpace.png 65.0 KB View Download