Revert of Improve linearized pdf load/show time.

Revert of Improve linearized pdf load/show time. (patchset #18 id:340001 of https://codereview.chromium.org/2349753003/ )

Reason for revert:
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5423/steps/compile/logs/stdio

FAILED: obj/pdf/pdf_unittests/document_loader_unittest.obj
pdf\document_loader_unittest.cc(631): error C2131: expression did not evaluate to a constant
pdf\document_loader_unittest.cc(631): note: failure was caused by call of undefined function or one not declared 'constexpr'
pdf\document_loader_unittest.cc(631): note: see usage of 'chrome_pdf::DocumentLoader::default_request_size'

Original issue's description:
> Improve linearized pdf load/show time.
> Reduce Pdf Plugin's count of reconnects.
> Add tests for PDFPlugin DocumentLoader.
>
> DocumentLoader was splitted into separate components, and missing tests was added for them.
>
> The main ideas in this CL are:
>
> 1) Do not reset browser initiated connection at start (includes case when we can use range requests), if we request data near current downloading position.
> 2) Request as much data as we can on each request, and continue loading data using current range request. (like tape rewind)
> 3) Isolate RangeRequest logic into DocumentLoader.  Method OnPendingRequestComplete is called, when we receive requested data (main connection, or Range connection). (like tape playing without rewing).
> 4) Fill this logic by tests.
>
> Example URL:
> http://www.major-landrover.ru/upload/attachments/f/9/f96aab07dab04ae89c8a509ec1ef2b31.pdf
> Comparison of changes:
> https://drive.google.com/file/d/0BzWfMBOuik2QNGg0SG93Y3lpUlE/view?usp=sharing
>
> Committed: https://crrev.com/7fd7423cdee0dba84faf480d10dd66dcb57110d9
> Cr-Commit-Position: refs/heads/master@{#427752}

TBR=jochen@chromium.org,raymes@chromium.org,spelchat@chromium.org,rsesek@chromium.org,art-snake@yandex-team.ru
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/eb1b563148e0bcdc3d5c73368c24a7dad383e903
Cr-Commit-Position: refs/heads/master@{#427772}

[Lei Zhang, 2016-10-26 19:20:41]

The CQ bit was checked by thestig@chromium.org

[Lei Zhang, 2016-10-26 19:20:42]

Created Revert of Improve linearized pdf load/show time.

[commit-bot: I haz the power, 2016-10-26 19:21:26]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-26 19:23:05]

Description was changed from

==========
Revert of Improve linearized pdf load/show time. (patchset #18 id:340001 of
https://codereview.chromium.org/2349753003/ )

Reason for revert:
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5423/steps/co...

FAILED: obj/pdf/pdf_unittests/document_loader_unittest.obj 
pdf\document_loader_unittest.cc(631): error C2131: expression did not evaluate
to a constant
pdf\document_loader_unittest.cc(631): note: failure was caused by call of
undefined function or one not declared 'constexpr'
pdf\document_loader_unittest.cc(631): note: see usage of
'chrome_pdf::DocumentLoader::default_request_size'


Original issue's description:
> Improve linearized pdf load/show time.
> Reduce Pdf Plugin's count of reconnects.
> Add tests for PDFPlugin DocumentLoader.
> 
> DocumentLoader was splitted into separate components, and missing tests was
added for them.
> 
> The main ideas in this CL are:
> 
> 1) Do not reset browser initiated connection at start (includes case when we
can use range requests), if we request data near current downloading position.
> 2) Request as much data as we can on each request, and continue loading data
using current range request. (like tape rewind)
> 3) Isolate RangeRequest logic into DocumentLoader.  Method
OnPendingRequestComplete is called, when we receive requested data (main
connection, or Range connection). (like tape playing without rewing).
> 4) Fill this logic by tests.
> 
> Example URL:
>
http://www.major-landrover.ru/upload/attachments/f/9/f96aab07dab04ae89c8a509e...
> Comparison of changes:
> https://drive.google.com/file/d/0BzWfMBOuik2QNGg0SG93Y3lpUlE/view?usp=sharing
> 
> Committed: https://crrev.com/7fd7423cdee0dba84faf480d10dd66dcb57110d9
> Cr-Commit-Position: refs/heads/master@{#427752}

TBR=jochen@chromium.org,raymes@chromium.org,spelchat@chromium.org,rsesek@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Improve linearized pdf load/show time. (patchset #18 id:340001 of
https://codereview.chromium.org/2349753003/ )

Reason for revert:
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5423/steps/co...

FAILED: obj/pdf/pdf_unittests/document_loader_unittest.obj 
pdf\document_loader_unittest.cc(631): error C2131: expression did not evaluate
to a constant
pdf\document_loader_unittest.cc(631): note: failure was caused by call of
undefined function or one not declared 'constexpr'
pdf\document_loader_unittest.cc(631): note: see usage of
'chrome_pdf::DocumentLoader::default_request_size'


Original issue's description:
> Improve linearized pdf load/show time.
> Reduce Pdf Plugin's count of reconnects.
> Add tests for PDFPlugin DocumentLoader.
> 
> DocumentLoader was splitted into separate components, and missing tests was
added for them.
> 
> The main ideas in this CL are:
> 
> 1) Do not reset browser initiated connection at start (includes case when we
can use range requests), if we request data near current downloading position.
> 2) Request as much data as we can on each request, and continue loading data
using current range request. (like tape rewind)
> 3) Isolate RangeRequest logic into DocumentLoader.  Method
OnPendingRequestComplete is called, when we receive requested data (main
connection, or Range connection). (like tape playing without rewing).
> 4) Fill this logic by tests.
> 
> Example URL:
>
http://www.major-landrover.ru/upload/attachments/f/9/f96aab07dab04ae89c8a509e...
> Comparison of changes:
> https://drive.google.com/file/d/0BzWfMBOuik2QNGg0SG93Y3lpUlE/view?usp=sharing
> 
> Committed: https://crrev.com/7fd7423cdee0dba84faf480d10dd66dcb57110d9
> Cr-Commit-Position: refs/heads/master@{#427752}

TBR=jochen@chromium.org,raymes@chromium.org,spelchat@chromium.org,rsesek@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

[commit-bot: I haz the power, 2016-10-26 19:23:06]

Committed patchset #1 (id:1)

[findit-for-me, 2016-10-26 19:44:03]

FYI: Findit identified this CL at revision 427772 as the culprit for
failures in the build cycles as shown on:
https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3Itb...

[hongchan, 2016-10-26 19:57:07]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2449973004/ by hongchan@chromium.org.

The reason for reverting is: As suggested FindIt, this reverting CL is also
causing the tree closure..

[commit-bot: I haz the power, 2016-10-26 20:00:05]

Description was changed from

==========
Revert of Improve linearized pdf load/show time. (patchset #18 id:340001 of
https://codereview.chromium.org/2349753003/ )

Reason for revert:
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5423/steps/co...

FAILED: obj/pdf/pdf_unittests/document_loader_unittest.obj 
pdf\document_loader_unittest.cc(631): error C2131: expression did not evaluate
to a constant
pdf\document_loader_unittest.cc(631): note: failure was caused by call of
undefined function or one not declared 'constexpr'
pdf\document_loader_unittest.cc(631): note: see usage of
'chrome_pdf::DocumentLoader::default_request_size'


Original issue's description:
> Improve linearized pdf load/show time.
> Reduce Pdf Plugin's count of reconnects.
> Add tests for PDFPlugin DocumentLoader.
> 
> DocumentLoader was splitted into separate components, and missing tests was
added for them.
> 
> The main ideas in this CL are:
> 
> 1) Do not reset browser initiated connection at start (includes case when we
can use range requests), if we request data near current downloading position.
> 2) Request as much data as we can on each request, and continue loading data
using current range request. (like tape rewind)
> 3) Isolate RangeRequest logic into DocumentLoader.  Method
OnPendingRequestComplete is called, when we receive requested data (main
connection, or Range connection). (like tape playing without rewing).
> 4) Fill this logic by tests.
> 
> Example URL:
>
http://www.major-landrover.ru/upload/attachments/f/9/f96aab07dab04ae89c8a509e...
> Comparison of changes:
> https://drive.google.com/file/d/0BzWfMBOuik2QNGg0SG93Y3lpUlE/view?usp=sharing
> 
> Committed: https://crrev.com/7fd7423cdee0dba84faf480d10dd66dcb57110d9
> Cr-Commit-Position: refs/heads/master@{#427752}

TBR=jochen@chromium.org,raymes@chromium.org,spelchat@chromium.org,rsesek@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Improve linearized pdf load/show time. (patchset #18 id:340001 of
https://codereview.chromium.org/2349753003/ )

Reason for revert:
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5423/steps/co...

FAILED: obj/pdf/pdf_unittests/document_loader_unittest.obj
pdf\document_loader_unittest.cc(631): error C2131: expression did not evaluate
to a constant
pdf\document_loader_unittest.cc(631): note: failure was caused by call of
undefined function or one not declared 'constexpr'
pdf\document_loader_unittest.cc(631): note: see usage of
'chrome_pdf::DocumentLoader::default_request_size'

Original issue's description:
> Improve linearized pdf load/show time.
> Reduce Pdf Plugin's count of reconnects.
> Add tests for PDFPlugin DocumentLoader.
>
> DocumentLoader was splitted into separate components, and missing tests was
added for them.
>
> The main ideas in this CL are:
>
> 1) Do not reset browser initiated connection at start (includes case when we
can use range requests), if we request data near current downloading position.
> 2) Request as much data as we can on each request, and continue loading data
using current range request. (like tape rewind)
> 3) Isolate RangeRequest logic into DocumentLoader.  Method
OnPendingRequestComplete is called, when we receive requested data (main
connection, or Range connection). (like tape playing without rewing).
> 4) Fill this logic by tests.
>
> Example URL:
>
http://www.major-landrover.ru/upload/attachments/f/9/f96aab07dab04ae89c8a509e...
> Comparison of changes:
> https://drive.google.com/file/d/0BzWfMBOuik2QNGg0SG93Y3lpUlE/view?usp=sharing
>
> Committed: https://crrev.com/7fd7423cdee0dba84faf480d10dd66dcb57110d9
> Cr-Commit-Position: refs/heads/master@{#427752}

TBR=jochen@chromium.org,raymes@chromium.org,spelchat@chromium.org,rsesek@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/eb1b563148e0bcdc3d5c73368c24a7dad383e903
Cr-Commit-Position: refs/heads/master@{#427772}
==========

[commit-bot: I haz the power, 2016-10-26 20:00:06]

Patchset 1 (id:??) landed as
https://crrev.com/eb1b563148e0bcdc3d5c73368c24a7dad383e903
Cr-Commit-Position: refs/heads/master@{#427772}