WIP: Migrate Wiki content over to src/docs

docs/clang_static_analyzer.md

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+See the [official clang static analyzer page](http://clang-analyzer.llvm.org/) for background.
+
+We don't run this regularly (because the analyzer's [support for C++ isn't great yet](http://clang-analyzer.llvm.org/dev_cxx.html)), so everything on this page is likely broken. The last time I checked, the analyzer reported mostly uninteresting things. This assumes you're [building chromium with clang](Clang.md).
+
+You need an llvm checkout to get `scan-build` and `scan-view`; the easiest way to get that is to run
+```
+tools/clang/scripts/update.sh --force-local-build --without-android
+```
+
+## With make
+
+To build base, if you use the make build:
+
+```
+builddir_name=out_analyze \
+PATH=$PWD/third_party/llvm-build/Release+Asserts/bin:$PATH  \
+third_party/llvm/tools/clang/tools/scan-build/scan-build  \
+    --keep-going --use-cc clang --use-c++ clang++ \
+    make -j8 base
+```
+
+(`builddir_name` is set to force a clobber build.)
+
+Once that's done, run `third_party/llvm/tools/clang/tools/scan-view/scan-view` to see the results; pass in the pass that `scan-build` outputs.
+
+## With ninja
+
+scan-build does its stuff by mucking with $CC/$CXX, which ninja ignores. gyp does look at $CC/$CXX however, so you need to first run gyp\_chromium under scan-build:
+```
+time GYP_GENERATORS=ninja \
+GYP_DEFINES='component=shared_library clang_use_chrome_plugins=0 mac_strip_release=0 dcheck_always_on=1' \
+third_party/llvm/tools/clang/tools/scan-build/scan-build \
+    --use-analyzer $PWD/third_party/llvm-build/Release+Asserts/bin/clang \
+    build/gyp_chromium -Goutput_dir=out_analyze
+```
+You then need to run the build under scan-build too, to get a HTML report:
+```
+time third_party/llvm/tools/clang/tools/scan-build/scan-build  \
+    --use-analyzer $PWD/third_party/llvm-build/Release+Asserts/bin/clang \
+    ninja -C out_analyze/Release/ base
+```
+Then run `scan-view` as described above.
+
+## Known False Positives
+
+  * http://llvm.org/bugs/show_bug.cgi?id=11425
+
+## Stuff found by the static analyzer
+
+  * http://code.google.com/p/skia/issues/detail?id=399
+  * http://code.google.com/p/skia/issues/detail?id=400
+  * http://codereview.chromium.org/8308008/
+  * http://codereview.chromium.org/8313008/
+  * http://codereview.chromium.org/8308009/
+  * http://codereview.chromium.org/10031018/
+  * https://codereview.chromium.org/12390058/