[NaCl SDK Docs] Fix many issues with the doc generator.

[NaCl SDK Docs] Fix many issues with the doc generator.

* It was broken after the git switch (it used SVN internally)
* Generate Pepper indexes to
  c-api-{channel} instead of pepper_{channel}/c

This relies on using Doxygen 1.7.6.1, which was installed by default on Lucid. Doxygen 1.8 does not work, and maybe never will.

You can set the DOXYGEN environment variable to point to a good version of doxygen.

No trybots because it is a documentation generation only change. I tested locally to ensure this wouldn't break stuff.

BUG=none
TEST=local
NOTRY=true
R=sbc@chromium.org

Committed: https://crrev.com/7fba1592940d3fd68fc46600b19b9af104a9c1c0
Cr-Commit-Position: refs/heads/master@{#302127}

[binji, 2014-09-19 23:21:53]

binji@chromium.org changed reviewers:
+ sbc@chromium.org

[Sam Clegg, 2014-09-20 00:02:36]

lgtm

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
File native_client_sdk/src/doc/Makefile (right):

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
native_client_sdk/src/doc/Makefile:54: doxygen/generate_docs.py
$(CHROMESITE_BUILDDIR) -v
Do we always want this?

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
File native_client_sdk/src/doc/doxygen/doxy_cleanup.py (right):

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
native_client_sdk/src/doc/doxygen/doxy_cleanup.py:150: ''''''
Is this also a doxygen version thing?  Maybe mention why this is needed in the
comment.

[binji, 2014-09-22 17:54:02]

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
File native_client_sdk/src/doc/Makefile (right):

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
native_client_sdk/src/doc/Makefile:54: doxygen/generate_docs.py
$(CHROMESITE_BUILDDIR) -v
On 2014/09/20 00:02:36, Sam Clegg wrote:
> Do we always want this?

Whoops, removed.

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
File native_client_sdk/src/doc/doxygen/doxy_cleanup.py (right):

https://codereview.chromium.org/591683002/diff/40001/native_client_sdk/src/do...
native_client_sdk/src/doc/doxygen/doxy_cleanup.py:150: ''''''
On 2014/09/20 00:02:36, Sam Clegg wrote:
> Is this also a doxygen version thing?  Maybe mention why this is needed in the
> comment.

Done.

[commit-bot: I haz the power, 2014-10-30 19:21:27]

Patchset 5 (id:??) landed as
https://crrev.com/7fba1592940d3fd68fc46600b19b9af104a9c1c0
Cr-Commit-Position: refs/heads/master@{#302127}

[binji, 2014-10-30 19:21:28]

Committed patchset #5 (id:70001) manually as
7fba1592940d3fd68fc46600b19b9af104a9c1c0.