Offer user to send feedback from profile error dialog

This CL makes the following:
- Improves the wording of the profile error dialog so as not to confuse users
- Adds a checkbox to offer the user to send a feedback report.
- Prepopulates the feedback description to ask the user what happened, and to
  add more debugging info (currently the name of the corrupted file).
- File the profile-error feedback reports under a category with name
  "FEEDBACK_PROFILE_ERROR"

Screenshots:
- Profile error dialog: https://drive.google.com/a/google.com/file/d/0B6G_-uQnf1_La0tBU2RWTEdXQ28/view?usp=sharing
- Prepopulated feedback app - 1: https://drive.google.com/a/google.com/file/d/0B6G_-uQnf1_LZ19obE1Xa0hNSEE/view?usp=sharing
- Prepopulated feedback app - 2: https://drive.google.com/a/google.com/file/d/0B6G_-uQnf1_LZFc4WjdxcjFwN28/view?usp=sharing

BUG=455749

Review-Url: https://codereview.chromium.org/2107493002
Cr-Commit-Position: refs/heads/master@{#410094}
45 files changed