Set GpuPreferences correctly in GpuDataManagerImplPrivate::AppendGpuCommandLine.

Set GpuPreferences correctly in GpuDataManagerImplPrivate::AppendGpuCommandLine.

GpuDataManagerImplPrivate::AppendGpuCommandLine() may add some GPU
command line switches which have been replaced by GpuPreferences. So we
need set those preferences in GpuDataManagerImplPrivate::AppendGpuCommandLine()
to allow GPU process get the correct GpuPreferences via IPC message.

BUG=601647
Review URL: https://codereview.chromium.org/1881463002

Cr-Commit-Position: refs/heads/master@{#386669}
(cherry picked from commit 4c901e8f2249a4efacb311d0e24d09f3c88c8e0c)

Committed: https://chromium.googlesource.com/chromium/src/+/dd9653eced19e3ade9b042631cb8f4488bb5d834

[Peng, 2016-04-13 15:17:27]

Description was changed from

==========
Set GpuPreferences correctly in GpuDataManagerImplPrivate::AppendGpuCommandLine.

GpuDataManagerImplPrivate::AppendGpuCommandLine() may add some GPU
command line switches which have been replaced by GpuPreferences. So we
need set those preferences in GpuDataManagerImplPrivate::AppendGpuCommandLine()
to allow GPU process get the correct GpuPreferences via IPC message.

BUG=601647

Review URL: https://codereview.chromium.org/1881463002

Cr-Commit-Position: refs/heads/master@{#386669}
(cherry picked from commit 4c901e8f2249a4efacb311d0e24d09f3c88c8e0c)
==========

to

==========
Set GpuPreferences correctly in GpuDataManagerImplPrivate::AppendGpuCommandLine.

GpuDataManagerImplPrivate::AppendGpuCommandLine() may add some GPU
command line switches which have been replaced by GpuPreferences. So we
need set those preferences in GpuDataManagerImplPrivate::AppendGpuCommandLine()
to allow GPU process get the correct GpuPreferences via IPC message.

BUG=601647

Review URL: https://codereview.chromium.org/1881463002

Cr-Commit-Position: refs/heads/master@{#386669}
(cherry picked from commit 4c901e8f2249a4efacb311d0e24d09f3c88c8e0c)

Committed:
https://chromium.googlesource.com/chromium/src/+/dd9653eced19e3ade9b042631cb8...
==========

[Peng, 2016-04-13 15:17:28]

Committed patchset #1 (id:1) manually as
dd9653eced19e3ade9b042631cb8f4488bb5d834.